[Amps] Which LDG Autotuner for Amp Input?

[Jim W7RY]

Agreed! I had problems trying to make the LDG setup work on my 3CX800 
amplifier.  Ended up using the WD7S board.  The LDG tuner was about 12 cable 
inches from the tube input.

73
Jim W7RY


--------------------------------------------------
From: "Gary Schafer" <garyschafer at comcast.net>
Sent: Sunday, October 10, 2010 9:42 AM
To: "'N1BUG'" <paul at n1bug.com>; "'' amps ''" <amps at contesting.com>
Subject: Re: [Amps] Which LDG Autotuner for Amp Input?

> Look at the WD7S tuned input board.
> http://home.earthlink.net/~wd7s/TU-6B.htm
>
> An external tuner is not the best way to go as the output capacitor of the
> pi net needs to be very close to the cathode of the tube.
>
> The WD7S board solves all problems.
>
> 73
> Gary  K4FMX
>
>> -----Original Message-----
>> From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com] On
>> Behalf Of N1BUG
>> Sent: Sunday, October 10, 2010 7:09 AM
>> To: '' amps ''
>> Subject: Re: [Amps] Which LDG Autotuner for Amp Input?
>>
>> Thanks everyone for the replies and information!
>>
>> It seems I didn't look closely enough at the discontinued products.
>>
>> The W4RT AT-100PRO with AT-100AMP CPU looks attractive. It won't fit
>> in the box (no surprise there) but external should work fine as
>> Gerald points out.
>>
>> The other option of course would be to homebrew a more conventional
>> tuned input and mount it external to the amp. That might take a bit
>> of experimenting. Bandswitching could be driven by transceiver band
>> changes and a band decoder. Next time I build an amp I will make a
>> larger input compartment!
>>
>> 73,
>> Paul N1BUG
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>
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