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-   -   Trc-77a crystals needed (http://www.mapleleafup.net/forums/showthread.php?t=28871)

Jleonardelli 29-04-18 21:44

Trc-77a crystals needed
 
Picked up a trc-77a lrrp radio

Any one have crystals ,parts or antennas?
Tks
John

Bruce MacMillan 30-04-18 09:19

For crystals you can try Brian at http://www.af4k.com/crystals.htm

The issued morse key is the J45 with leg clamp. This is a common WW2 item. These often appear on ebay. The H140/U headset uses the 5 pin U229 plug.

The antennas are just a length of wire. Check the manual for length versus frequency and cut your own.

The hardest part to find is the battery case as most dissolved from leaking batteries.

Jleonardelli 02-05-18 16:23

Yes thanks

I found the information on the antennas in the manuals (of course) and they tend to be shorter to take advantage of the internal antenna tuner

It has a plus 455Khz receiver xstal schema that makes it a bit interesting

Lucky I have more than a dozen transmit crystals

73s es LRRP
John

Quote:

Originally Posted by Bruce MacMillan (Post 250026)
For crystals you can try Brian at http://www.af4k.com/crystals.htm

The issued morse key is the J45 with leg clamp. This is a common WW2 item. These often appear on ebay. The H140/U headset uses the 5 pin U229 plug.

The antennas are just a length of wire. Check the manual for length versus frequency and cut your own.

The hardest part to find is the battery case as most dissolved from leaking batteries.



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