[ARC5] SCR-183: Clean, Lube and Tips
David Stinson
arc5 at ix.netcom.com
Sat Nov 27 13:50:11 EST 2021
I don't address wiring filaments separately.
It would defeat my purpose.
My focus is on running the system as close
to "as designed" as possible- on the dynamotor, with
it's control boxes, no wires hanging out of the sides etc.
First- the radio has to work. Mummy-Radios gather no interest,
so they don't survive long-term.
Second- It has to work as close to "as-designed" as is practical
($500 worth of tubes for a QRP radio isn't practical).
Drilling holes, changing connectors, etc. strictly forbidden.
I have done so successfully and repeatedly, using 6AQ5, 5763
and a set of original tubes, resulting in many good QSOs on both
CW and AM. I'm working on presenting the
information; it's just going to take some time. I am very slow
in my old age.
73 OM DE Dave AB5S
On 11/26/2021 10:45 AM, J Mcvey wrote:
> You will need all 4 tubes installed , even to run as a MOPA , because
> the transmit tube filaments are both in series with the modulator tubes.
> That is, Unless you are doing the "bypass heater wiring with 6.3 vac
> " and just grounding the cathodes with the original filament pins
> as previously discussed? The cathodes and heaters are isolated in this
> configuration, but requires added wiring to the heaters .
>
>
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