Looking for information on how to creat a solid state device that can plug into the 4 pin connector and replace the old 201A/301A tubes.

Hi Mike

I've sent you an article about building a solid state replacement for 201A's.

If your radio has standard 4 pin sockets, doesn't require a bayonet pins, 30's will work. Just reduce filament to 2 volts.

Norm

:Looking for information on how to creat a solid state device that can plug into the 4 pin connector and replace the old 201A/301A tubes.

I am also interested in a solid state replacement for 201A's. Is the article still available anywhere?

:Hi Mike
:
: I've sent you an article about building a solid state replacement for 201A's.
:
: If your radio has standard 4 pin sockets, doesn't require a bayonet pins, 30's will work. Just reduce filament to 2 volts.
:
:Norm
:
::Looking for information on how to creat a solid state device that can plug into the 4 pin connector and replace the old 201A/301A tubes.

Richard

Article sent by email. Let me know if you don't receive it.

Norm

:I am also interested in a solid state replacement for 201A's. Is the article still available anywhere?
:
:
:
::Hi Mike
::
:: I've sent you an article about building a solid state replacement for 201A's.
::
:: If your radio has standard 4 pin sockets, doesn't require a bayonet pins, 30's will work. Just reduce filament to 2 volts.
::
::Norm
::
:::Looking for information on how to creat a solid state device that can plug into the 4 pin connector and replace the old 201A/301A tubes.

If you keep you eye peeled, especially at radio swap meets, you can find good '01As for less than $10 each. If the filament is OK, the emission can be increased by rejuvenating the tube with higher filament voltage in a tube tester. Also, short-pin '01As will work in most sockets with a side-pin lock.

There is something about having real tubes in the old 1920s battery-powered sets.
Doug

:Richard
:
: Article sent by email. Let me know if you don't receive it.
:
:Norm
:
::I am also interested in a solid state replacement for 201A's. Is the article still available anywhere?
::
::
::
:::Hi Mike
:::
::: I've sent you an article about building a solid state replacement for 201A's.
:::
::: If your radio has standard 4 pin sockets, doesn't require a bayonet pins, 30's will work. Just reduce filament to 2 volts.
:::
:::Norm
:::
::::Looking for information on how to creat a solid state device that can plug into the 4 pin connector and replace the old 201A/301A tubes.

I wouldn't even touch a radio if it didn't have real tubes. I don't know why anyone else would. 01A tubes are easily found on eBay all the time, as well as other sources.

T.