FOR SALE:

Ref

Description

Price

1. Equipment:

1.1

Commercial VFO for an IMRC R700M  receiver, extremely rugged, precision permeability tuned, covering 7.6 - 8.8MHz with an overturn prevention mechanism. 0.25 inch tuning shaft. Requires +9v and +5v with negative to ground. Click here for a photo showing internal views.

£75 ono

1.2

Left handed Vox guitar neck, unused. Needs a new white plastic nut (string separator).

£25

1.3

Heathkit Hybrid Phone Patch HD-15 with polished aluminium control knobs

£20

1.4

New LC100-A Digital LC Meter. Requires 5v DC supply and has a mini-USB socket. Assembled and working but no case. Photo here.

£10

1.5

1.6

Multiquartz16 10W FM 144MHz channelised transceiver with fist mic. Channels S20, S21, S22, S23, R0, R2, R3, R4, R5, R6, R7 fitted with 1750Hz  tone burst. SO239 aerial socket. 13.5v DC.Good working order with manual.

£30

1.7

1.8

Yaesu MH1 B8 fist microphone with tone switch and three top buttons, fitted with a four pin female captive plug

£5

1.9

Foster DF-50B high impedance fist microphone fitted with a 5pin 270degree captive DIN plug

£5

1.10

Trio 5002 dynamic fist microphone fitted with a 4 pin captive female plug

£5

1.11

Logitech K270 WiFi Keyboard with USB WiFi module, on-off power switch and internal battery

£10

1.12

Logitech M310 WiFi mouse with USB WiFi module, on-off power switch and internal battery

£15

1.13

CSL 300Mbps WLAN USB Adaptor with aerial, USB cable, installation CD with manual

£10

1.14

Heathkit SB104 solid state transceiver with SSB and CW filters but no outer case. Clean inner condition. Sold for parts etc.

£150

1.15

2. Crystals:

I hold two banks of quartz crystals / ceramic resonators available for sale, my own and one for the Crystal Palace Radio & Electronics Club lower down this page. I can only test crystals for fundamental parallel resonance at 20pF, 30pF and 50pF load capacitance and activity. If you need assistance in the application and use of quartz crystals please visit the Electronic Design Centre here where there are many examples of crystal oscillators and filters.

2.1

My crystal bank (updated 19/09/2026) has been completely restructured following the addition of some 500 crystals and may be viewed here

See list

2.2

A pair of Icom HC25/u repeater crystals labelled R145.00 and T145.60

£6 the pair

2.3

TR2200 crystal labelled R145.000

£3

3. Filters

3.1

1 Pye sealed 455KHz LC filter 15KHz bandwidth

£3

3.2

Collins unused crystal filter Part No 526 7006 011, type X250K F440. No fixing nuts.

£20

3.3

3.4

3.5

3.6

4. Modules

4.1

STC 803069-5001 double encapsulated crystal oven with internal sockets for two HC6/u crystals. Male International Octal plug on the base.

£5.00

4.2

4.3

5 Club items

Radio club crystal bank (updated 19/09/2026) which can be viewed here

Please note that an error in the web link to the club crystal bank has now been corrected.

See list

6 Components

These are all new and unused unless otherwise stated

6.1

2SC1970 - 4 available

£5 each

6.2

2SC1972 - 2 available

£8 each

6.3

Box of assorted mostly new plus a few used germanium diodes and transistors including 1N21BMR (boxed), 2N987, 2SB187, OAZ207, OA81,  AC187/03, AD140, ADY26, AFY19, B12, B20, GET102, H15, NKT213, OA5, OC200, OC26, OC28, OC35, OC44, OC72, OA79, OC83, OC170, OCP70, PXA101, ZB6.2. Photo here

Offers?

6.4

Neosid 6pin screened PCB mounting inductor assembly with internal ferrite pot core, adjustable ferrite core and two galvanically isolated windings of 33uH and 117uH with the core about half way into the windings.  Sealed with soft wax so easy to modify. 0.55in x 0.55in x 0.75in high. Photo here.

50p ea or 8 for £2

6.5

6.6

7 Old Valves

7.1

Valve 1 photo (no visible markings) and valve 2 photo (shows 235 and RAF in barely visible lettering). Both with British 4 pin bases and filaments, believed to be 2 volt types, are intact and not shorting to other elements inside the valves.

Offers?

8. Transformers

8.1

(RS 207-239) Primary 2 x 120v, Secondary 2 x 4.5v at 25VA per winding

£7

8.2

(RS 207-144) Primary 2 x 120v, Secondary 2 x 12v at 10VA per winding

£5

8.3

8.4

AF output transformer for single 6BW6 on 300v to 3ohm and 600ohm secondaries

£5

8.5

Hudson Electronics C/1002/C HT choke, L = 10H, R = 85ohms

£5

8.6

Hudson Electronics amplitude modulation transformer, single EL84 to single QQV03-10 (RF out = 9W)

£8

8.7

Hudson Electronics Private Deck (valve VHF 9W transceiver) mains transformer, Pri: 0v, 200v, 220v, 240v, Sec: 0-270v for bridge rectifier, 6.3v (18swg so about 5A),12v low current, electrostatic screen

£10

Wanted:

Item

Description

1

Heathkit 'SB-Line Green' control knobs, meters and other external decorative items

2

Multi-section 455KHz ceramic filters

3

Heathkit SB-600 case and SB-101 case for new home construction projects

4

Small communications (speech only) loudspeakers with 2W, 4 - 8 ohm coil and approx 85mm mounting centres

5

Valve TV or FM tuner IF transformers and screening cans, typically 2.5 inches high and 3/4 inch square - used units are fine as long as the former is not broken and the cores not jammed

6

200mH 250mA high voltage audio choke

7

Mains transformer: 230V primary, 550-0-550V@250mA or 0-275V @ 500mA preferably fully enclosed

8

Collins TCS modulation transformer