On 5/13/19 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

--
"I am a river to my people."
Jeff-1.0
WA6FWi
http:foxsmercantile.com