Abbott TP-4

5/11/2007 9:40:25 PMKris G.

Has anyone heard of this transceiver, it is called an ultra shortwave transceiver, it contains a 7F7 locktal, one empty octal socket, a Hytron HY75, and a Hytron HY615. Any ideas? It is small for a transceiver and uses an ouboard power supply coneected via a six pin connector but this is missing and the radio is quite compact, the dials use the old 20's 0-100 scale.

5/26/2007 2:40:07 PM

:Has anyone heard of this transceiver, it is called an ultra shortwave transceiver, it contains a 7F7 locktal, one empty octal socket, a Hytron HY75, and a Hytron HY615. Any ideas? It is small for a transceiver and uses an ouboard power supply coneected via a six pin connector but this is missing and the radio is quite compact, the dials use the old 20's 0-100 scale.
:

12/11/2007 5:52:13 AMkostas

:Has anyone heard of this transceiver, it is called an ultra shortwave transceiver, it contains a 7F7 locktal, one empty octal socket, a Hytron HY75, and a Hytron HY615. Any ideas? It is small for a transceiver and uses an ouboard power supply coneected via a six pin connector but this is missing and the radio is quite compact, the dials use the old 20's 0-100 scale.
:I am looking for a datasheet of the HY75 tube. Has anyone got any?

12/11/2007 11:26:59 AMNorm Leal

Hi

HY75 is a small transmitting tube.

http://www.r-type.org/exhib/aad0213.htm

It's a VHF triode with 6.3 volt @ 2.5 amp filament. Gain of 10.

Norm

::Has anyone heard of this transceiver, it is called an ultra shortwave transceiver, it contains a 7F7 locktal, one empty octal socket, a Hytron HY75, and a Hytron HY615. Any ideas? It is small for a transceiver and uses an ouboard power supply coneected via a six pin connector but this is missing and the radio is quite compact, the dials use the old 20's 0-100 scale.
::I am looking for a datasheet of the HY75 tube. Has anyone got any?

12/18/2007 1:52:05 PMkostas

I have found only bits of info but I neet a pdf datasheet. It is difficult to find...

:Hi
:
: HY75 is a small transmitting tube.
:
:http://www.r-type.org/exhib/aad0213.htm
:
: It's a VHF triode with 6.3 volt @ 2.5 amp filament. Gain of 10.
:
: Norm
:
:::Has anyone heard of this transceiver, it is called an ultra shortwave transceiver, it contains a 7F7 locktal, one empty octal socket, a Hytron HY75, and a Hytron HY615. Any ideas? It is small for a transceiver and uses an ouboard power supply coneected via a six pin connector but this is missing and the radio is quite compact, the dials use the old 20's 0-100 scale.
:::I am looking for a datasheet of the HY75 tube. Has anyone got any?

12/18/2007 9:19:11 PMNorm Leal

Hi

Look in The Radio Amateur Handbook from around 1950. They show spec's for HY75.

Norm

:I have found only bits of info but I neet a pdf datasheet. It is difficult to find...
:
::Hi
::
:: HY75 is a small transmitting tube.
::
::http://www.r-type.org/exhib/aad0213.htm
::
:: It's a VHF triode with 6.3 volt @ 2.5 amp filament. Gain of 10.
::
:: Norm
::
::::Has anyone heard of this transceiver, it is called an ultra shortwave transceiver, it contains a 7F7 locktal, one empty octal socket, a Hytron HY75, and a Hytron HY615. Any ideas? It is small for a transceiver and uses an ouboard power supply coneected via a six pin connector but this is missing and the radio is quite compact, the dials use the old 20's 0-100 scale.
::::I am looking for a datasheet of the HY75 tube. Has anyone got any?