Surplus Parts & Equipment
Dr Alex UR4LL has quite a few Russian electronics parts and some equipment for sale. The list is updated periodically, and some items have pictures (click on links for details and/or pictures of each item); (Email UR4LL for details). If your email program does not pick up the "drgavva" email link, his address is "drgavva" followed by "@" and "gmail.com". Alternate email address is "ur4ll@gmx.com".
It is also possible to contact Dr Alex via Skype, address: alexgavva
Or connect via Facebook
Parcel Tracking
The most popular QRO words in Russian and their translation you can find here
NOTE:
For Russian bipolar transistors , FETs, ICs, etc, contact UR4LL directly with your inquiry.
TRIODES
$120
Essential Parts for GS35B Socket from industrial PA
You can see designs with GS35B: #1, #2, #3, #4, #5, #6
The most concentrated info about GS35b
You can see designs with GS35B: #1, #2, #3, #4, #5, #6
The most concentrated info about GS35b
$45
GS31B
Almost identical to GS-35B except 1KW anode instead
of 1.5KW, and designed for almost TWICE the tube life 1200W out thru 432 MHz.
Original factory package.
(NOTE from ND2X: Two GS-31B triodes will outperform a pair of 3CX800's at less than 20% of the cost).
NOTE: All GS35b schematics are OK for GS31b.
(NOTE from ND2X: Two GS-31B triodes will outperform a pair of 3CX800's at less than 20% of the cost).
NOTE: All GS35b schematics are OK for GS31b.
$100
GI7B & GI7BT 300-400W, HF to 300MHz; 250W thru 23cm)
$25
$15 per pair
not for sale, easy to build
GI70B & GI70BT
Absolutely same as GI7B and GI7BT only without coolers.
Can be used as a spare tubes.
Absolutely same as GI7B and GI7BT only without coolers.
Can be used as a spare tubes.
$20
GI6B identical to GI7B except rated to 1300MHz instead of 3GHz; use same as GI7B
$20
$110
GU48 kW glass triode. OK for HF and for audio as well. It is exact copy of Svetlana 833a Triode
SOLD
GI-46b without cooler
Some designs with GI46b including 3-500z substitution: #1 , #2, #3 , #4, #5 , #6.
Some designs with GI46b including 3-500z substitution: #1 , #2, #3 , #4, #5 , #6.
$35
SOLD
$20 per pair
TETRODES
GMI-11 compact tetrode - low height 500W tetrode - tube
NOTE: its socket - $15
800 W PA with 2 GMI-11 w/o anode transformer and its
PS
NOTE: its socket - $15
800 W PA with 2 GMI-11 w/o anode transformer and its
PS
$75
813
Pair of them run 1kW easy without cooling and the associated blower noise.
Pair of them run 1kW easy without cooling and the associated blower noise.
$35
$15
6P45S Sweep Tube - $17, Socket - $2.
Similar to PL519 except the heater voltage is 6.3V. SK509 type Socket - $2
Similar to PL519 except the heater voltage is 6.3V. SK509 type Socket - $2
GS15B 500+ W on 23 cm in KD5FZX PA design - $10.
Socket - $15.
HF Socket - $20.
NOTE: GS15B also runs 400 W on HV and 6m.
Socket - $15.
HF Socket - $20.
NOTE: GS15B also runs 400 W on HV and 6m.
GS23B
1.5KW on 70cm; N7ART, KD5FZX, K5GW
PAs (same as 4CX1600U; similar to YL1050)
NOTE: GS23B also runs 2 kW on HV and 6m.
1.5KW on 70cm; N7ART, KD5FZX, K5GW
PAs (same as 4CX1600U; similar to YL1050)
NOTE: GS23B also runs 2 kW on HV and 6m.
$100
GS36B
(4CX400A) - $65ea; Is direct plug-in on/to 4cx150 to 4cx400 family. Ken, KM3F runs 600W with a single GS36b on 6m.
Read Ken's message
Socket for GS36b - $20.
Read Ken's message
Socket for GS36b - $20.
GU29 dual beam tetrode$10, socket $5
This is a small glass tetrodes widely used in Eastern Eu for building 100W PA; roughly equivalent to SRS4451, QQE06/40, RS1009, 5894, CV2797, 829B - US made.
See description simple Russian 400 W anode multiplier PA with 4 GU29.
This is a small glass tetrodes widely used in Eastern Eu for building 100W PA; roughly equivalent to SRS4451, QQE06/40, RS1009, 5894, CV2797, 829B - US made.
See description simple Russian 400 W anode multiplier PA with 4 GU29.
GU34B
Tube is NIB, passed military control. Works up to 250 MHz, Ua max 2.5kV. Base similar to GU43b. It will do 1KW on HF with no problem. Sometimes it works better than GU74b.
GU34B PA with original socket
GU-34b original socket - $55
NOTE: GU34B is able to work without any air cooling up to 350mA with plate voltage 2kV
Schematics with GU-34b are available at:
1) 900 W PA
2) 1 kW PA
Tube is NIB, passed military control. Works up to 250 MHz, Ua max 2.5kV. Base similar to GU43b. It will do 1KW on HF with no problem. Sometimes it works better than GU74b.
GU34B PA with original socket
GU-34b original socket - $55
NOTE: GU34B is able to work without any air cooling up to 350mA with plate voltage 2kV
Schematics with GU-34b are available at:
1) 900 W PA
2) 1 kW PA
GU35B
Good through 250 MHz,Anode dissipation rating 3.5kW, Ua max 5kV.
It's easy to build a socket for this tube: GU35B basement - Note that the central pin is Grid 1.
Good through 250 MHz,Anode dissipation rating 3.5kW, Ua max 5kV.
It's easy to build a socket for this tube: GU35B basement - Note that the central pin is Grid 1.
$200
$250
GU43B
NOTE: OK for HF-6m, similar to 4CX1600; 1600 W up to 100 MHz.
Orginal GU43b socket - $80
Small GU43b socket - SOLD
NOTE: OK for HF-6m, similar to 4CX1600; 1600 W up to 100 MHz.
Orginal GU43b socket - $80
Small GU43b socket - SOLD
$65
GU74b 250MHz (4CX800a exact quality copy made by Svetlana) tetrode Tube
$150
GU-74B socket with anode clamp
$60
GU-74B socket similar to above without anode clamp
$30
SK1a Socket for GU-74B
$30
SK620 Socket OK for GU-74B
$25
GU78B Tube
$400
Socket for GU78B tetrode
$120
$350
$80
PENTODES
GU46 pentode (exclusively linear tube)
800-1000W, similar to 4-1000A or QB5/1750
See picture of power amplifier with this tube.
800-1000W, similar to 4-1000A or QB5/1750
See picture of power amplifier with this tube.
$60
GU50 pentode (analog of German LS50) - $10
socket - $7
250W HF Amplifier Kit with 3xGU50 Includes box,sockets,new tubes, band switch,2 air var capacitors,meter, RF connectors and other parts - easy to begin and complete. Box size is 32x10x25cm(HxWxD). $100.
socket - $7
250W HF Amplifier Kit with 3xGU50 Includes box,sockets,new tubes, band switch,2 air var capacitors,meter, RF connectors and other parts - easy to begin and complete. Box size is 32x10x25cm(HxWxD). $100.
GU81M - $55, socket - $35
Two of these tubes run 3kW without cooling and the associated blower noise. It is possibly to undress tube for its height reducing.
See schematic.
See schematic.
2Zh27L Widely used pentode for Russian military receivers
$3
SOCKETS
Essential Parts for GS35B Socket from industrial PA
$45
$25
The simplest socket for GI7B - not for sale, how to build.
$25
$20 per pair
$15
SOLD
$15
$10
$15
$15
$20
SK1a Socket for GU-74B
$30
GU-74B socket with anode clamp
$60
GU-74B socket similar to above without anode clamp
$30
Socket for GU78B tetrode
$140
SK1a Socket for GU-74B
$30
SK620 Socket OK for GU-74B
$25
MISCELLANEOUS
$40 per pair
Neon TH20 and TH30 bulbs - the best RF indicator
$2
Thyratron TGI 1-1000/25, 1000A@25kV
(A thyratron is a type of gas filled tube used as a high energy electrical switch and controlled rectifier)
(A thyratron is a type of gas filled tube used as a high energy electrical switch and controlled rectifier)
$40
RF Probe Use with RF transformers
$3
$25
TURBINES
MICROPHONES
Dynamic Russian stand microphone MD-380A New in box. Provides excellent audio quality with any tranceiver.
$15
TURNS COUNTERS
Compact Turns counters (40, 23,18,13 turns) OK for vac var capacitors and inductors -$25( 40&23 turns), $20 (18 turns), $15 (13 turns)
Turns counter (40 turns) OK for vac var capacitors and inductor
$30
Turns Counter for 8 and 20 turns with front panel , outside mounting
$30
Compact Turns Counter 85 turns outside mounting
$30
HEATER TRANSFORMERS
TH36, 30W, 220-240/110-127V prim, secondary 4x6.3V@1.38A
Similar to TH-46, but more compact and easy.
Similar to TH-46, but more compact and easy.
$20
METERS
Size 60x60mm meters requires 50mm diameter wall hole:
1A - $15 each
100mA-0-100mA - OK for Grid current control- $15 each
20A - $20 with bypass
50A - $20 with bypass
1A - $15 each
100mA-0-100mA - OK for Grid current control- $15 each
20A - $20 with bypass
50A - $20 with bypass
$10 each
$15 each
RELAYS
High quality aviation use relays OK for
1kW and more HF finals.
NOTE:Single units are also available, $15 each
See picture of these relays in GU84B PA. See another picture with these relays
In kW PA with 2xGK71
NOTE:Single units are also available, $15 each
See picture of these relays in GU84B PA. See another picture with these relays
In kW PA with 2xGK71
$70 per 5 pcs
RF Relay
>1000 W (for HF) open-frame relay, 24-27VDC coil (use for HV, e.g. 3kV 2A is no problem; NOTE: 20A at 30 MHz )
RF Relay in HF Power Amplifier
RF Relay in 10kW HF Power Amplifier
RF Relay in HF Power Amplifier
RF Relay in 10kW HF Power Amplifier
$15
RF Relay: Small size open frame relays (OK for GU74b); It is
possible to use these relays for Pi circuits with 1 kW and more.
See picture these relays used in 1 kW PA
See picture these relays used in 1 kW PA
$15
RF Relay: Open frame 2 position relays. Using a pair of these
relays it is possibly to build 5 bands switcher for Pi-circuit. It has neutral position if it is tongue directed to down, I kW it is not a problem for
it. Russians call it "tongue of my mother-in-law"
$15
REW-14 1500 W (thru 650 MHz) 50 ohm coaxial relay with 3 cable connectors
REW-14 relays are widely used at Germany club station DR9A for switching their numerous antennas.
No failures during many years with power up to 3 kW
REW-14 relays are widely used at Germany club station DR9A for switching their numerous antennas.
No failures during many years with power up to 3 kW
$45
REW14 angle connector OK for RG213
$5ea
REW14 straight connector OK for RG213
$4ea
REW-15 1500 W (thru 650 MHz) 75 ohm coaxial relay with 3 cable connectors
Seewriteup for notes on using this relay in 50 ohm PAs, especiallyHF and 6M - no sweat!!
Are able to work up to 3 kW similar to REW-14 (See note above)
Seewriteup for notes on using this relay in 50 ohm PAs, especiallyHF and 6M - no sweat!!
Are able to work up to 3 kW similar to REW-14 (See note above)
$23
3kW Antenna Switch with 6 REW-15 relays without cable connectors.Front panel of this switch
REW15 connector CP-75-167 - OK for 10-14mm OD cables
$3ea
REW15 connector #3 - with teflon cable
$5ea
REW15 connector #4 For small diam cables,5-9mm OD
$4ea
REW16 1000W on HF (500W thru 1000 MHz - usable at 1296MHz) 50 ohm coaxial relay with 3 cable connectors ( OK for RG-213)
$35
$10ea
$5ea
REW16 connector #4 For small diam cables, 4mm OD and less
$4ea
REW16 connector #5 - with cable ( up to1m long)
$6ea
REW17 75 ohm relay, works up to 23cm
$15
Russian SPDT P1W-1 relay OK for up to 5kW, 24VDC coil.
$55
Russian SPDT P1D-1W relay OK for 500W-1.5kW, 24VDC coil. Works up to 72MHz
$29
Siemens VR311 2kW SPDT relay 24VDC coil, Made in Germany
$35
B1B
Vacuum Relay, 3KV, 10A at 30 MHz
$20 each
Not for sale
B2B Vacuum Relay, 4KV, 15A -
4kV@15A relay @ 30 MHz, 5.5kV@35A relay @ 3Mhz. Its coil is 24VDC
B2B Relay in HF Power Amplifier
B2B Relay in HF Power Amplifier
$25 each
$100
HV 2-3 kV@1-2A RelayOn plastic plate
$12
RPA12
polarized RF relay; input circuits of HF PA with 80-100W or more, 30-40W up to 150 MHz - 13 VDC coil models -$5 and 27VDC coil models- $4
AMPLIFIERS & KITS
200W HF Amplifier Kit with 3xGU50 Includes box,sockets,new tubes, band switch,2 air var capacitors,meter, RF connectors and other parts -
easy to begin and complete. Box size is 32x10x25cm(HxWxD).
Rear view
Its description with schematics.It is in Russian, all essential info will be translated.
Rear view
Its description with schematics.It is in Russian, all essential info will be translated.
$100
GS35b 1-1.5kW Amplifier Kit
Excellent for the first kW PA. Easy to build, very stable.
GS35b will forgive all mistakes. Most of RF parts are available.
GS35b triode - New in box - $120
Ready for use box for socket (sk1a installed) and fun OK for another sockets
$20( without sk1a)
NON-INDUCTIVE RESISTORS
$5 per pair
$5 per pair
$5 per pair
$2 each
Five 50 Ohm 10W non-inductive resistors on a plate
(Using 5 plates it is possibly to easy build 50ohm 250W dummy load.)
(Using 5 plates it is possibly to easy build 50ohm 250W dummy load.)
$10
$2 each
$5 each
INDUCTIVE RESISTORS
10 Ohm 10W
$2
10 Ohm 25W
$3
20 Ohm 3W
$2
$15 per pair
20 Ohm 150W
$12
$5
$5
$5
$5
$10
$4
51 Ohm 75W
$7
100 Ohm 100W
$10
180 Ohm 100W
$8
$5
$5
$5
$5
$2
5.1kOhm 50W
$5
$10
Big power inductive wire resistors are possible according to your request
INSULATORS
$5ea
Insulator for Big Vetical easy to mount
$20
Big Antenna Insulator. Length - 70mm, hole -10mm diam
$5 each
$8 each - Good for high power.
Antenna Insulators - Ceramic (pictured top, $1 each, pictured bottom, $1.50 each)
$10 each
$3 each
$10 each
CAPACITORS
HV Capacitors for Rectifiers:
40 microFarad, 5KV Oil-filled, K75-40a type
10.5x17x21cm size,21cm is height with electrodes
10.5x17x21cm size,21cm is height with electrodes
SOLD
20 microFarad, 5KV Oil-filled, K75-40a type
10.5x9x20cm size,20cm is height with electrodes
10.5x9x20cm size,20cm is height with electrodes
$65
100 microFarad, 3KV Oil-filled, K75-40a type
10.5x14.5x20cm size,20cm is height with electrodes
10.5x14.5x20cm size,20cm is height with electrodes
$100
100 microFarad, 3KV Oil-filled,K75-28 type
14x8.5x25cm size,25cm is height with electrodes
14x8.5x25cm size,25cm is height with electrodes
$95
100 microFarad, 5KV Oil-filled,K41I-7 type
12.5x17x47cm size,47cm is height with electrodes.Europe only
12.5x17x47cm size,47cm is height with electrodes.Europe only
106Euro
K15U-1 door knob type
1 pF 10kV 6 kVar
SOLD
1.5 pF 6kV 5 kVar
$2
2.2 pF 6kV 5 kVar
$2
3.3 pF 6kV 5 kVar
$2
4.7 pF 3.5kV 4 kVar
$2
4.7 pF 6kV 7kVar
$3
6.8 pF 3.5kV 6 kVar
$3
6.8 pF 10kV
$3
10 pF 3.5kV
$2
10 pF 6kV
$3
10 pF 10kV 8kVar
$4
10 pF 25kV 50kVar
$10
15 pF 3.5kV 4 kVar
$2
15 pF 6kV 7 kVar
$3
15 pF 10kV 8kVar
$3
15 pF 15kV 35kVar
$6
18 pF 3.5kV 4 kVar
$2
18 pF 6kV 5 kVar
$3
18 pF 10kV 8kVar
$4
22 pF 3.5kV 4kVar
$2
22 pF 6kV 5kVar
$3
22 pF 10kV 8kVar
$4
22 pF 10kV 40kVar
$5
27 pF 3.5kV
$2
27 pF 6kV 5kVar
$3
27 pF 10kV 8kVar
$4
33 pF 3.5kV
$2
33 pF 6kV
$2
33 pF 10kV 8kVar
$4
33 pF 10kV 40kVar
$6
33 pF 25kV 125kVar
$12
39 pF 3.5kV 4 kVar
$2
39 pF 6kV 7kVar
$3
47 pF 3.5kV
$2
47 pF 6kV 7kVar
$3
47 pF 6kV 30 kVar
$5
47 pF 10kV 8kVar
$4
47 pF 25kV 160 kVar
$15
56 pF 3.5kV
$2
56 pF 6kV 7kVar
$3
56 pF 10kV 8kVar
SOLD
68 pF 3.5kV
$2
68 pF 6kV 7kVar
$3
68 pF 10kV 8kVar
SOLD
68 pF 15kV 14kVar
SOLD
100 pF 3.5kV 4kVar
$2
100 pF 6kV 7kVar
$5
100 pF 10kV 9KVAR
SOLD
100 pF 15kV 15KVAR
SOLD
100 pF 20kV 15KVAR
SOLD
100 pF 20kV 25KVAR
SOLD
150 pF3,5kV 6KVAR
$3
150 pF 6kV 7KVAR
SOLD
150 pF 10kV 9KVAR
SOLD
150 pF 20kV 30KVAR
$7
220 pF 3.5kV/8KVAR
$3
220 pF 10kV 16KVAR
SOLD
220 pF 15kV 25KVAR
SOLD
330 pF 3.5kV 8KVAR
$4
330 pF 4kV 15KVAR
SOLD
330 pF 6kV/20KVAR
SOLD
330 pF15kV/30KVAR
$7
470 pF 4kV/20KVAR
SOLD
470 pF 6kV 25 kVar
SOLD
470 pF 15kV/40KVAR
$8
680 pF(700-750pF are possible) 4kV/25KVAR
$5
1000 pF 4kV/30KVAR
$6
1000 pF 6kV/40KVAR
$8
1500 pF 15kV
$15
1500 pF 15kV/90KVAR
SOLD
K15U-2 Capacitors
150 pF 10 kV 75 kVar
$10
$6
KVI-1 RF Capacitors
KVI-3 door knob type
$2
$4
$8
SOLD
$7
$4
SOLD
SOLD
SOLD
K15-5 Disk Ceramic
470 pF 3kV
$0.25
1000 pF 6.3 kV 10kVar
$1
2200 pF 3kV
$0.5
2200 pF 6.3kV 34kVar!
$2
3300pF 3kV
$0.50
4700 pF 1.6kV 12kVar
$0.30
4700pF 3kV 15kVar
$1
6800 pF 1.6 kV
$0.50
10.000 pF 1.6kV 10kVar
$1
15.000 pF 3kV 12kVar
$1
Mica capacitors
Teflon capacitors
Ceramic trimmers
Vacuum capacitors
$7
25pF 10kV
$10
25pF 15kV
$11
30pF 15kV
$11
SOLD
50pF 15kV
$12
SOLD
50pF 20kV Made in UK
$13
$12
SOLD
$12
100pF 25kV
$12
100pF 20kV Made in UK
$15
$12
150pF 15kV
$13
$13
$14
250pF 15kV
$14
$15
Vacuum Variable capacitors
KP1-4(КП1-4)model 3-50 pF 25 KV 50A max dia. 75mm, max len. 179mm (with shaft)
$55
KP1-8(КП1-8)model 4-100 pF 5 KV 35A Compact vac var capacitor 4-100pF 5kV
$80
KP1-4(КП1-4)model 5-100 pF 25 KV 50 A max dia. 87mm, max len. 191mm (with shaft)
$85
KP1-8(КП1-8)model 5-250pF 5KV 35A max dia. 70mm, max len. 156mm (incl shaft)
$120
KP1-4(КП1-4)model 7.5-350pF 10kV 50A max dia. 100mm, max len. 249mm (with shaft)
SOLD
KP1-4(КП1-4)model 10-500 pF 10 KV 50A max dia. 115mm, max len. 254mm (with shaft)
$135
KP1-8(КП1-8)model 15-750pF 5KV 35A max dia. 108mm, max len. 200mm (incl shaft)
(measured capacity is 10-780pF)
(measured capacity is 10-780pF)
$130
KP1-4(КП1-4)model 20-1000pF 10KV 50A max dia. 145mm, max len. 278mm (incl shaft)
$140
KP1-12(КП1-12)model 10-1200pF 4KV 75A max dia. 96mm, max len. 200mm
without turns counter and mounting hardware.
Its turns counter -$15, mounting hardware -SOLD
without turns counter and mounting hardware.
Its turns counter -$15, mounting hardware -SOLD
$135
7kW PA with this capacitor Aldo, IU8AIB uses 7300V plate voltage in it
Compact Turns counters (18,13 turns) OK for vac var capacitors and inductors
$20 (18 turns), $15 (13 turns)
Turns counter (40 turns). OK for vac var capacitors and inductors
$30
10cm long Teflon Shaft extender OK for 12mm diam shaft
$10
$5,$10
Air Variable capacitors
Hi-quality (ceramic, bearings) 4X500pF with reducer.
Widely used in Russian HF PA designs
Widely used in Russian HF PA designs
$45
Compact 15-1000pF Air variable - Wide spaced
SOLD
12-205 pF Air variable - wide spaced, solid construction
$25
$40
