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What amp is this?
https://www.hamradiodeals.co.uk/forums/viewtopic.php?f=59&t=95326
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Author:  MM6JVQ [ Tue Jun 19, 2018 8:28 pm ]
Post subject:  What amp is this?

This amp came in a joblot and I'm not sure what band it was intended for. I tried it on 2 meters but it only gave around 0.5 watt amplification.
Can anyone tell by looking at it or am I expecting too much from you lol.

Image


Image

Author:  G4YVM [ Tue Jun 19, 2018 9:01 pm ]
Post subject:  Re: What amp is this?

Email Tony at Spekky.

Author:  GM0ONX [ Tue Jun 19, 2018 9:27 pm ]
Post subject:  Re: What amp is this?

He'll charge you through the nose for a poorly photostatted manual, well it did for a transverter for me.

Author:  G4YVM [ Tue Jun 19, 2018 9:29 pm ]
Post subject:  Re: What amp is this?

The OP doesnt want a manual, just an ID.

Tony will tell him that Im sure

D

Author:  MM6JVQ [ Tue Jun 19, 2018 9:37 pm ]
Post subject:  Re: What amp is this?

G4YVM wrote:
Email Tony at Spekky.


Thanks, I've emailed him now.

Author:  GM0ONX [ Tue Jun 19, 2018 9:54 pm ]
Post subject:  Re: What amp is this?

G4YVM wrote:
The OP doesnt want a manual, just an ID.

Tony will tell him that Im sure

D


Found it listed under TA2S1 in a Spectrum Communications ad in a 1990's RadCom. 2.5W in 25W out on 2m. £55 built and boxed.

Author:  M0XXQ [ Tue Jun 19, 2018 9:57 pm ]
Post subject:  Re: What amp is this?

It's a 30W 144MHz linear amplifier, an early one.
Low power out, first thing to check is that scuzzy looking relay that has no cover, contacts could probably do with a squirt of switch cleaner.
Check the bias control is turning the power transistor on, 1988? Possible dry joints and if you are getting out less than you are putting in the power device could be banjaxed.

Author:  M0XXQ [ Tue Jun 19, 2018 9:58 pm ]
Post subject:  Re: What amp is this?

Sorry was replying at the same time as Len.

Author:  GM0ONX [ Tue Jun 19, 2018 9:58 pm ]
Post subject:  Re: What amp is this?

ad in question

Attachments:
Spectrum.JPG
Spectrum.JPG [ 52.98 KiB | Viewed 2232 times ]

Author:  M0VMT [ Tue Jun 19, 2018 10:02 pm ]
Post subject:  Re: What amp is this?

When did they change the allowance of 10watts to 30 for the FL class.

Author:  GM0ONX [ Tue Jun 19, 2018 10:04 pm ]
Post subject:  Re: What amp is this?

M0VMT wrote:
When did they change the allowance of 10watts to 30 for the FL class.


10W at the antenna. Lossy coax? :D

Author:  sidspop [ Tue Jun 19, 2018 10:07 pm ]
Post subject:  Re: What amp is this?

They have not, as far as I am aware.
Why should you think they have?

Author:  M0VMT [ Tue Jun 19, 2018 10:14 pm ]
Post subject:  Re: What amp is this?

sidspop wrote:
They have not, as far as I am aware.
Why should you think they have?


Well up above we have a m6 trying a 30 watt linear on 2 metres so I thought hang abart have the rules and regs changed :D

Author:  sidspop [ Tue Jun 19, 2018 10:22 pm ]
Post subject:  Re: What amp is this?

M0VMT wrote:
sidspop wrote:
They have not, as far as I am aware.
Why should you think they have?


Well up above we have a m6 trying a 30 watt linear on 2 metres so I thought hang abart have the rules and regs changed :D


No, what we have above is an M6 who is trying to use a little bit of old fashioned radio amateurs ingenuity, a little bit of opening his gob and asking for help with something, quite possibly some "self training", and trying to learn .

How the chuff do you know he wasn't testing it in to a dummy load???

Author:  M0VMT [ Tue Jun 19, 2018 10:25 pm ]
Post subject:  Re: What amp is this?

sidspop wrote:
M0VMT wrote:
sidspop wrote:
They have not, as far as I am aware.
Why should you think they have?


Well up above we have a m6 trying a 30 watt linear on 2 metres so I thought hang abart have the rules and regs changed :D


No, what we have above is an M6 who is trying to use a little bit of old fashioned radio amateurs ingenuity, a little bit of opening his gob and asking for help with something, quite possibly some "self training", and trying to learn .

How the chuff do you know he wasn't testing it in to a dummy load???

How the chuff do you know their was a dummy load used or not !!!

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