Cambridge  
  Kits
 
Antenna Noise Bridge Low Frequency Converter 60 kHz Receiver VLF Receiver 198 kHz Converter
50 & 70 MHz Converter Audio Oscillator MSF Clock Tunable Audio Notch Filter Programmable Chime
Antenna Tuner Speech Compressor Two Tone Oscillator Sound Meter 136 kHz Crystal Calibrator

ANTENNA TUNER

img2013/at.gif

BOOST DX and reduce interference, IDEAL for HF150 etc receiver or 10 W TX. 100kHz - 30 MHz in 6 overlapping ranges, BANDPASS design, not just usual highpass. DETECTOR output, connect voltmeter for free WAVEMETER, field strength meter etc. SO239 socket for receiver, single pole 3 mm for antenna and ground, 2.5 mm for detector. HIGH Q coils and air dielectric variable capacitor, 4 x 7 x 14 cm, 350 g.

"certainly improved reception ... signals easily peaked up", Practical Wireless.
"performance outstanding", PJO'N in New Zealand.
"efficient and effective for DX reception ... small size", PB in Notts.
"effective with a short antenna at low frequencies ... gives excellent results", Practical Wireless.

This fun-to-build kit used to include all parts, tinned drilled fibre-glass pcb, pre-wound coils, case, connectors, screws etc as well as detailed assembly and operating instructions including circuit description and diagram, frequency calibration chart, and was priced at 31.30 including VAT and UK postage.
Please e-mail martincambridge@live.co.uk for the latest price reduction, details of payment and any extra parts now neeeded.