Unfortunately not on these. They are laminated or whatever the process is call where the sides are "metalized".
In fact , I don't think it's quartz, but some kind of ceramic resonator? It is only about a quarter inch square and dark grey. Lots of room inside the case!
On Tuesday, January 11, 2022, 10:07:28 PM EST, Glenn Little WB4UIV <[email protected]> wrote:


Is it possible that there is contamination between the crystal slab and the contacts?
Can it be that the contacts to the crystal slab need to be retensioned?

73
Glenn
WB4UIV

On 1/11/2022 9:13 PM, J Mcvey via MRCA wrote:
Update:

Channels 72 and 73 are intermittent, so I need those too.

On Tuesday, January 11, 2022, 07:49:49 PM EST, J Mcvey via MRCA <[email protected]> wrote:


 BC604 Xtals :

Channel 75   27.5 MHz ( actual freq 509.259 kHz)

Channel 77  27.7 MHz  (actual freq 512.963 KHz)

Please PM me if you have some you want to sell.

Thanks

Jim
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Glenn Little                ARRL Technical Specialist   QCWA  LM 28417
Amateur Callsign:  WB4UIV            [email protected]    AMSAT LM 2178
QTH:  Goose Creek, SC USA (EM92xx)  USSVI, FRA, NRA-LM    ARRL TAPR
"It is not the class of license that the Amateur holds but the class
of the Amateur that holds the license"
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