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Lucifer[_6_] Lucifer[_6_] is offline
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Default Oldtimer question (valves/tubes)

On Mon, 13 May 2019 09:39:11 -0500, Fox's Mercantile
wrote:

On 13/05/19 6:46 AM, Lucifer wrote:
On Mon, 13 May 2019 11:31:05 -0000 (UTC), Cursitor Doom
wrote:

On Mon, 13 May 2019 20:46:03 +1000, Lucifer wrote:

I did have a one valve test oscillator which was powered by a nine volt
grid bias battery.

Tust the grid alone was battery powered? Seems a bit of a strange idea. I
mean, it's entirely feasible, but if you have to generate higher voltages
for the anode from the mains....


The nine volts was the anode voltage!
I had a hybrid car radio with 4 valves and 2 transistors.
The valves used the 12 volts for the anode voltage.

Valves don't need high voltage on the anode for low power
applications.


http://www.junkbox.com/electronics/lowvoltagetubes.shtml


Very interesting. Thank you.