[Boatanchors] DX-100 Folks

[David Stinson]

Dear DX-100 folks:
Have any of you tired to use the little,
short and oval "half size" HC-49S crystals
in their DX-100? These are the tiny things
you see in those inexpensive "QRP" kits on
Amazon.

I ask because I'm working 20 minutes here,
an hour there to get a Bendix 430 fishing
boat radio running. "Stock" uses HC-6 xtals.

https://photos.app.goo.gl/FyLFwDbMXvWnCtCe6 
<https://photos.app.goo.gl/FyLFwDbMXvWnCtCe6?fbclid=IwAR32olsrjB1hRSwN4xWno5xgM9WuFOGdDzwuXtc9CnNBcEF6w9b2P3w_AaY>

The little "shorties" won't give enough drive
to run the Bendix circuit:

https://photos.app.goo.gl/QXfQXAVjrtf1WosL6 
<https://l.facebook.com/l.php?u=https%3A%2F%2Fphotos.app.goo.gl%2FQXfQXAVjrtf1WosL6%3Ffbclid%3DIwAR1lchSgOW_im7epZ0zqxVippOeGNINZJWJ_GiSF3PMDM06QcYCkOjJdu0Y&h=AT3JR4803jHjm7ZMP7NPrsUVmwPH-mzJUxpgWSzZftIyte4HQjqmshTUpAc4j3r8uQJFgABDPxVrZkjUSf0nK0kW-8JMYJho2KgjulnQmyavqk8wxBJmTyhd-rBuKf3L&__tn__=-UK-R&c[0]=AT1GvlAEOI2euH4RqzBBVWSRQXPI3YuQnCDTQShUCVoa6laa5KML9j1Vl1fqWzJfloF0nIXdUxnfepu8U8wJY1bKoNZcgP5ZeG0r72MmcCylHhH6Hz3tkr6nEkNeUynQn4HbTtphv_IueG3UNb3leHthUNXkQ640bPw>

No buffer or multiplier here. Note the crystal
is between the plate and signal grid and has
310V B+ on it.

Here is the DX-100 transmitter circuit, minus the crystal switch
and clamper. The crystal is between the signal grid
and the screen grid- a variation of the Electron Coupled?

https://photos.app.goo.gl/vfi99ePHKKk6vGHz7 
<https://l.facebook.com/l.php?u=https%3A%2F%2Fphotos.app.goo.gl%2Fvfi99ePHKKk6vGHz7%3Ffbclid%3DIwAR3si5suGekua6TbPrRx3hSpu2hTPwP1ylCEfT-dmpkoTimtPoVWLy7bHUw&h=AT2pepq3xvsffsM4pkiAD3gqidM-RCzx-habEn7Or7JGnAPBspzexvHVCc3rT2ILp75x0T_JbB3hBABkcYXBvrMXKltAiCsetT4t0Glv_P9OhfhmDpWVkm5oPmqecAD5&__tn__=-UK-R&c[0]=AT1GvlAEOI2euH4RqzBBVWSRQXPI3YuQnCDTQShUCVoa6laa5KML9j1Vl1fqWzJfloF0nIXdUxnfepu8U8wJY1bKoNZcgP5ZeG0r72MmcCylHhH6Hz3tkr6nEkNeUynQn4HbTtphv_IueG3UNb3leHthUNXkQ640bPw>

I'm wondering if the 12BY7 in the DX-100 configuration
would perform better with the "shortie" crystals than
the Bendix circuit. What do you think?

TNX OM ES 73 DE Dave AB5S

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