Tuner-Match ATU

500pf variable capacitors and a e roller inductor the variable capacitors with 3mm plate spacings are well capable of withstanding voltages of several kilo volts
post 12 Nov 2023


Antenna Transmatch tuner Links

201



Auto-Couplers
There is little thought about the additional losses within the coupler itself. In fact, the losses through the auto-coupler are usually several times more than a 2:1 SWR would cause through coax

BLT tuner qrp station
I managed to find 2 indentical poly variable capacitors that checked out to range from 15 to 300 pf, and they even had 1/4" shafts for mounting knobs

Coupling for Levy antenna
Continuous tuning from the 20 meter band to the 10 meter band

Dentron Super Tuner
One of the most practical and useful tuners I ever owned was the one made by the Dentron Company back in the 1970s and early 80s

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