[TenTec] DDS PTO replacement for old Ten Tec rigs

Lee lee at wa3fiy.com
Thu Oct 26 17:07:03 EDT 2017

Mike, check out:


This one has a "clicker" but as someone mentioned here you can get one 
for a buck or two that does not click and will likely drop into the PC 
board pattern.  The price is right and although I don't have one, I do 
have it's sibling in the QRX transceiver which works like a charm (both 
VFO and transceiver)  Any time you want you can replace the low cost 
encoder with an optical encoder like on the higher end radios.

I'm thinking of using one for my Corsair II by replacing the PTO in the 
remote VFO with one of these.  Have a few other projects to complete 
first though.



------ Original Message ------
From: "Mike Bryce" <prosolar at sssnet.com>
To: ah7i at gatech.edu; "Discussion of Ten-Tec Equipment" 
<tentec at contesting.com>
Sent: 10/26/2017 4:32:53 PM
Subject: Re: [TenTec] DDS PTO replacement for old Ten Tec rigs

>I’m looking for a DDS VFO replacement does does 5.00 to 5.550 mhz but 
>with a optical encoder and NO mechanical click/clicker
>anyone know of such a beast?
>Mike, WB8VGE
>>  On Oct 26, 2017, at 3:47 PM, Katz Ajamas <ajamas.rn at gmail.com> wrote:
>>  Aloha Curt!
>>  Have you looked at the AQRP VFO?
>>  $40.
>>  Si570 based.
>>  http://www.qsl.net/k5bcq/Kits/Kits.html
>>  PA0KLT VFO kit.
>>  $45 or so (price is in pound sterling)
>>  Si570 based.
>>  https://www.sdr-kits.net/index.php?route=web/pages&page_id=43_43
>>  The above two kits are quite similar.
>>  I have the AQRP. Not using with a Tentec. It's my signal generator 
>>for the
>>  shack :-)
>>  I've just ordered a VNA kit from AQRP. It's VIA on the web site but 
>>  recently added I/O ports.
>>  The only part of the AQRP kit I found challenging was soldering the 
>>  chip. Missed a pad on the first go around. Rumor is that Kees is 
>>coming out
>>  wit a smaller version of his VFO so you may want to ask before you 
>>  The display might be small enough to fit the window on the C21.
>>  Then there is the qrp labs kit. It's only $33
>>  Si5351a based.
>>  https://www.qrp-labs.com/vfo.html
>>  You could really hotrod that C21. take a look at the manual for the 
>>  labs QCX transceiver for some ideas.
>>  73, -Bob ah7i/w4
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