[MRCA] Frankenstein Tuner Saga Continues

[Dennis DuVall]

Taking another look the circuit is symmetrical except that the “output” series cap and the parallel cap across he coil are ganged together.  Wonder if there would be any utility in having all three capacitors adjustable separately.  

What do you think?

Dennis D.  W7QHO
Glendale, CA

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> On Oct 23, 2014, at 5:55 PM, Dennis DuVall <duvallddennis at gmail.com> wrote:
> 
> Been using that circuit for years starting on the East Coast when I was WA3YXN.  A little tricky to adjust and the settings are are quite sharp but will match just about anything to anything.  Never tried the”switch ends” trick but sounds Interesting,
> 
> Dennis D.  W7QHO
> Glendale, CA
> 
> *****************
> 
>> On Oct 23, 2014, at 5:08 PM, B. Smith <smithab11 at comcast.net> wrote:
>> 
>> The Frankenstein Tuner project continues to evolve. Got the input capacitor mounted on nice birch wooden blocks topped by lexan. The circuit has been changed from the "Ultimate Transmatch" to the later "SPC" transmatch as published in QST- - both require a dual section variable capacitor.   A reflected power bridge  and meter have been  installed and the input and output connector locations  finalized. Turns counter dial added to the roller inductor.  Leads from the upper deck to the lower deck are now fed through ceramic bushings. Tuner tip for the day when using a tuner for unbalanced to unbalanced matching  without a balun if you run across a difficult match, try reversing the tuner, put the input into the output side - output into the input.  BTW if you are contemplating  one of the above circuits and do not have a dual section capacitor in your box then use two separate caps.
>> 
>> Z
>>