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CB Radio Boards - 19 August 2020

Proprietors;- Mr A.J. Nailer HNC BA G4CFY, Mrs J.R. Nailer. 

12 WEATHERBURY WAY, DORCHESTER, DORSET, DT1 2EF, ENGLAND

Phone UK 01305 262250 International 0044 1305 262250

Please email or phone for a quote or for a Paypal money request or for bank details. Payment can be by direct bank transfer or by credit/debit card or via Paypal to g4cfy@spectrumcomms.co.uk  together with a note stating product required. Purchase of several items is likely to make a saving on postage. You can also obtain products by using my Ebay shop https://ebay.co.uk/str/Spectrum-Comms and pay via Paypal.

Orders & quote requests to  jean@spectrumcomms.co.uk

Technical queries to  g4cfy@talktalk.net  

  Contents

Piptone, Kaytone Frequency mod-demod, FM455 VCO48 block for Cybernet 048
Spectra bleedover filter, SF10.7 Speech Processor, SP059 EU and UK add-ons for FM rigs
Noise Squelch VCO27 block for Cybernet 059 & 121 UK add-on for multimode rigs

Bleep Boards

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PT1000S PIPTONE. Roger Bleep. The unit provides 50mV across a 600 ohm microphone. Tone frequency and amplitude are pre-settable. A relay is included for loudspeaker and PTT switching. PCB size 44 x 25 x 17mm. 

PCB Kit £9.30 UK, £11.30 EU, £12.30 World. PCB Built £12.80 UK, £14.80 EU, £15.80 World.  EU & World tracking £5.50 extra.

 

KT2000 KAYTONE(a name coined by Spectrum), this unit is the successor to the original Kaytone sold in 1979. End of message Morse K particularly useful for weak signal situations. Adjustable pitch, speed, and level. A relay is included for TX and RX switching making it suitable for all rigs. PCB size 58 x 39 x 15mm.   

PCB Kit £14.80 UK, £16.80 EU, £17.80 World.  PCB Built £21.80 UK, £23.80 EU, £24.58 World. EU & World tracking £5.50 extra.

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NS1000 NOISE SQUELCH. A really effective cure for all the annoying background noise produced by FM receivers. Allows reception of weak signals without loss of any except those which would have been unreadable anyway. Particularly useful for homebase use where its performance like that of AM is less annoying.   

PCB Kit £15.50 UK, £17.50 EU, £18.50 World. PCB built £21.80 UK,£23.5, EU, £24.50 World.  EU & World, tracking £5.50 extra.

 

SF10.7 SPECTRA FILTER. An active filter incorporating a 2 pole crystal filter to replace the 10.7MHz ceramic first IF filter in early CB radios. The effect is to reduce bleed-over by about 90% and by being active does not cause loss of sensitivity of the rig. PCB size 36x20x17mm. 

PCB Kit £10.30 UK, £12.30 EU, £13.30 World. PCB built £12.30 UK, £14.30 EU, £15.30 World

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FM455 FREQUENCY MOD-DEMOD. Adds very good quality FM transmission and reception to AM only CB rigs. Receive side connects to the last IF amplifier before the AM detector. The transmit side connects directly to the microphone input and provides processed audio to the varicap diode in the PLL circuit. PCB size 44x39x16mm. 

PCB kit £13.80 UK, £15.80 EU, £16.80 World.  PCB built £18.80 UK, £20.80 EU, £21.80 World.   EU & World tracking £5.50 extra.

 

SP059 SPEECH PROCESSOR.To overcome poor FM transmit quality on Cybernet PTBM059COX and PTBM121D4X rigs. 

The board picks up the audio drive to the VCO processes it and then feeds an add-on varicap board. PCB size 40x20x15mm. 

PCB kit £9.50 UK, £11.50 EU, £12.50 World.  PCB built £13.30 UK, £15.00 EU, £16.00 World.   EU & World tracking £5.50 extra.

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VCO BLOCKS 

VCO27 VCO BLOCK. Replacement for green block in Cybernet multimode rigs PTBM059COX and PTBM121D4X, also allows the rig to accommodate extra channels such as UK81 band. Type VCO27 for CB bands, for conversion of rigs to the 10 metre band use VCO28. Built £7.50 UK, £9.50 EU, £10.50 World untracked.

VCO48 VCO BLOCK. Replacement for silver block in Cybernet multimode rigs using PTBM048AOX chassis. £10.30 UK,  £12.00 EU, £13.00 World.   

 

 

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EPROM BOARDS

EU and UK Band add-on boards for FM rigs

SC26L SYNTHESIZER CONVERSION. To add EU band to UK rigs which use the LC7137 PLL IC. PCB kit £27.50, PCB built £35.50.

SC26A SYNTHESIZER CONVERSION. To add EU to UK Amstrad rigs which use the LC7136 or LC7137 PLL IC. PCB Kit £27.50, PCB Built £35.50.

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UK Band add-on boards for multimode rigs

SC02A SYNTHESIZER CONVERSION. Eprom board for adding UK81 to Cybernet multimode rigs. PCB size 40x30x10mm.  It can also be configured to add 40channels below the lowest USA block on Cybernet multimode rigs. To achieve this spread of channels a replacement VCO block VCO27 may be required. PCB size 40x30x10mm. PCB kit £15.00 UK, PCB built £17.80 UK.

SC02C SYNTHESIZER CONVERSION. Adds  UK81 to Cybernet AM/FM rigs. PCB size 40x30x10mm. PCB kit £15.00 UK, PCB built £17.80 UK.

SC106 SYNTHESIZER CONVERSION. Adds UK81 to Uniden multimode rigs, Stalker 9, Cobra 148GTL DX, Superstar 360, Madison, Jackson, State rig type when ordering. PCB size 40x30x10mm. PCB kit £15.00 UK, PCB built £17.80 UK.

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SC3900 SYNTHESIZER CONVERSION. Adds UK81 to Superstar 3900 and Galaxy Pluto rigs. PCB size 50x40x10mm.  PCB Kit £18.50, PCB Built £21.80.

SC3900F SYNTHESIZER CONVERSION. Adds UK81 to Galaxy Saturn homebase and relatives with frequency readout. PCB Kit £18.50.  PCB built £21.80.

 

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