Info needed on Motorola 2 tube RF deck
 

I have a Motorola amplifier from a working remote base. The only number I
can find TLD6612A on the PA deck. It is a two tube, conduction cooled
amplifier that was operating on 161 mhz. The tubes are 65-82282D02 (Eimac
8560AS I am told is the same tube). I would like to know if anyone has
converted one of these PAs to 2 meter SSB and any hints of how to do so. I
don't have the manual for the remote base or the PA.

Please reply to the group.

Thanks guys,
Ken

Info needed on Motorola 2 tube RF deck
 

Thanks Allison for your info. Looks like another one for the trash can. I
figured that the tubes which I figured would do as much as 4CX250s would get
me to 300-500 watts SSB. Oh well we can't get lucky every time.
73,
Ken, WS4V


wrote in message
...
On Sun, 26 Mar 2006 21:17:17 -0500, "Ken" wrote:

I have a Motorola amplifier from a working remote base. The only number I
can find TLD6612A on the PA deck. It is a two tube, conduction cooled
amplifier that was operating on 161 mhz. The tubes are 65-82282D02 (Eimac
8560AS I am told is the same tube). I would like to know if anyone has
converted one of these PAs to 2 meter SSB and any hints of how to do so. I
don't have the manual for the remote base or the PA.

Please reply to the group.

Thanks guys,
Ken

IF it's the one I remember just retune it. For SSB you will have to
run different bias and accept lower power. The original design ran
Class C FM and is totally unsuited for SSB without different bias.

As memory serves for FM that was either a 40 or 60W package and
for SSB you cant run that hard. Also the input power limit was very
low (well under 1W).

Allison


Allison

Info needed on Motorola 2 tube RF deck
 

That tube might even be worth money on Ebay!

The Eternal Squire

wrote:
Dont trash it, find someone that wants it for a repeater or something.

Allison


On Mon, 27 Mar 2006 16:35:42 -0500, "Ken" wrote:

Thanks Allison for your info. Looks like another one for the trash can. I
figured that the tubes which I figured would do as much as 4CX250s would get
me to 300-500 watts SSB. Oh well we can't get lucky every time.
73,
Ken, WS4V


wrote in message
.. .
On Sun, 26 Mar 2006 21:17:17 -0500, "Ken" wrote:

I have a Motorola amplifier from a working remote base. The only number I
can find TLD6612A on the PA deck. It is a two tube, conduction cooled
amplifier that was operating on 161 mhz. The tubes are 65-82282D02 (Eimac
8560AS I am told is the same tube). I would like to know if anyone has
converted one of these PAs to 2 meter SSB and any hints of how to do so. I
don't have the manual for the remote base or the PA.

Please reply to the group.

Thanks guys,
Ken

IF it's the one I remember just retune it. For SSB you will have to
run different bias and accept lower power. The original design ran
Class C FM and is totally unsuited for SSB without different bias.

As memory serves for FM that was either a 40 or 60W package and
for SSB you cant run that hard. Also the input power limit was very
low (well under 1W).

Allison


Allison

Info needed on Motorola 2 tube RF deck
 

Ebay is an option although it weighs a ton if the entire amp was shipped,
maybe 40 pounds. It is in perfect condition and I feel like it could go to
good use somewhere. Thanks for your input.
Ken

wrote in message
oups.com...
That tube might even be worth money on Ebay!

The Eternal Squire

wrote:
Dont trash it, find someone that wants it for a repeater or something.

Allison


On Mon, 27 Mar 2006 16:35:42 -0500, "Ken" wrote:

Thanks Allison for your info. Looks like another one for the trash can.
I
figured that the tubes which I figured would do as much as 4CX250s would
get
me to 300-500 watts SSB. Oh well we can't get lucky every time.
73,
Ken, WS4V


wrote in message
.. .
On Sun, 26 Mar 2006 21:17:17 -0500, "Ken" wrote:

I have a Motorola amplifier from a working remote base. The only
number I
can find TLD6612A on the PA deck. It is a two tube, conduction cooled
amplifier that was operating on 161 mhz. The tubes are 65-82282D02
(Eimac
8560AS I am told is the same tube). I would like to know if anyone has
converted one of these PAs to 2 meter SSB and any hints of how to do
so. I
don't have the manual for the remote base or the PA.

Please reply to the group.

Thanks guys,
Ken

IF it's the one I remember just retune it. For SSB you will have to
run different bias and accept lower power. The original design ran
Class C FM and is totally unsuited for SSB without different bias.

As memory serves for FM that was either a 40 or 60W package and
for SSB you cant run that hard. Also the input power limit was very
low (well under 1W).

Allison


Allison