[MRCA] CR-1 crystals for an RT53B/TRC-7 RT

[Edward Larsen]

Mark,
   I have some CR-1A crystals.  What fundamental frequency do you need?
Ed
KI6R, Az

On Thu, Oct 2, 2025 at 7:32 PM Jason WA6BBQ <w6iee.73 at gmail.com> wrote:

> Look into qrp-labs.com ProgRock2.  It’s actually a synthesizer that runs
> off of 5 volts.
>
> I modified a TRC-77 with two of them,  and it works super, easily gives me
> 6 transmit and 6 receive frequencies , and I can change the T/R frequencies
> at will.
>
> It will take a little work to adapt to your application, but still easier
> and vastly cheaper than unobtainium xtals.
>
> Unfortunately, it’s a British company that ships from somewhere in Turkey,
> so you will be paying some tariffs and related fees.
>
> Jason WA6BBQ
>
> On Thu, Oct 2, 2025 at 16:50 MARK DORNEY via MRCA <mrca at mailman.qth.net>
> wrote:
>
>> *From:* MARK DORNEY <mkdorney at aol.com>
>> *Date:* October 2, 2025 at 5:42:03 PM EDT
>> *To:* mailman at mrca.qth.net
>> *Subject:* *CR-1 crystals for an RT53B/TRC-7 RT*
>>
>> Hello Everybody,
>>      I’m putting together an RT53B/TRC-7 VHF RT. The one frequency of
>> real interest is 130.30 MHz ( the set is to be used when a real WW2 C-47 is
>> dropping supplies/paratroops at events). There hasn’t been a decision on
>> what second frequency is to be installed. The Crystal holders are the CR-1.
>> Looking for the crystal holders and a somebody that cuts custom crystals?
>> Any help is appreciated
>>
>> Mark D.
>> WW2RDO
>>
>> “In matters of style, float with the current. In matters of Principle,
>> stand like a rock. “.   -   Thomas Jefferson
>>
>> Sent from my iPhone
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