[ARC5] The value of MO and PA tank components.
Leslie Smith
vk2bcu at operamail.com
Wed Mar 23 02:57:17 EDT 2016
To all:
I wish to learn the values of the oscillator and PA tank components in
the ATA, SCR and ARC-5 transmitters.
These are, for the oscillator: T53, C60, C63 (M.O. turning) and C68.
For the PA Tank circuit: T54A & B, C65 (PA tuning), C66 and C67.
The manual gives the following information for T54:
Frequency Dwg # (from WECO)
3 to 4 MHz 7347
4 to 5.3 7248
5.3 to 7 7249
7.0 to 9 7250
Information is given in Table #20, page 126 in hard copy. (or page #141
in PFD numbers) about these items, but not the value (uH, pF). I
presume this is because different values are used for the different
frequency range in each type of transmitter.
I searched the tech manuals to my best ability. My point here is that
I'm writing AFTER making a diligent search, rather than trying to avoid
this work.
If anyone on the list can advise where I might find component values for
the tank components I'll be grateful.
Thank you,
Les
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