[Moon] Ericsson Compact 9000 UHF modification

Peter Sundberg sm2cew at telia.com
Thu Sep 20 14:31:11 CEST 2018


Hello Walter,

Unfortunately I don't have a transistor for your Compact 9000.

In your previous email you were asking for info how to modify the the 
amplifier in class AB for SSB, did you ever find any such info?

I would also be interested in this modification as I am using a 
Compact 9000 as a driver for my 70cm PA, now running it in class C of 
course. At times it would be great to also be able to run SSB :-)

73
Peter SM2CEW



At 10:52 2018-09-20, Walter Crauwels ON4BCB via Moon wrote:
>Hi all, I would like to help a HAM friend to repair and modifiy his 
>Amplifier sold about 10years ago on fleamarkets I noticed that the 
>unit I bought was not working properly (1 transistor killed) 
>unfortunatly i never tried the amplifier so did not noticed it Das 
>anyone has some PT20062's available in order to help our Hamfriend ? 
>Walter ON4BCB Op do 2 aug. 2018 om 17:49 schreef Walter Crauwels 
>ON4BCB <on4bcb at gmail.com >: > Hi all, I would like to help a HAM 
>friend to modifiy his Amplifier > sold about 10years ago on 
>fleamarkets > > > Does anyone still has a proper modification for 
>this amplifier as the > original page is not available anymore, and 
>many modifcations are not > available anymore or faulty > > > > I 
>want to obtain the following: > > Need to operate the amplifier in 
>linear mode class AB for SSB operation > > Add PTT for bias (ptt to 
>gnd) > > Keep the original Transistors > > No RX/TX switching 
>circuit is needed > > Looking forward > > Walter > ON4BCB > 
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