[AMPS] FL2100Z i/p matching problem

[Neil Carr]

>  Can anyone offer me some advice on the FL2100Z please?
> 
> Ive recently bought one for a silly price (due to the fact it wasn't
> working and had many faults).
> 
> I've now managed to get down to two problems, any advice/assistance would
> be much appreciated. Replies direct to
> 
> carr.n@runshaw.ac.uk    please.
> 
> 
> (1) I have a bad i/p match on 10/12/15/20m the other bands are good.   How
> do I adjust the input matching? A quick look inside the back panel cut
> out, suggests the band switch L.C. tuning are preset values with no
> trimmers, Am I missing something? (I don't have a cct diagram)
> 
> (2) Someone has told me they think the following   is a know problem, and
> this is the place to find the answer, here goes.....
> 
> No matter how well the amp tunes up on a particular band (and all bands
> are affected) after a short period of time the o/p is nil and I have to
> completely retune, for example, tune up to 400w on 160m, leave things
> running on stby, come back 15 mins later and o/p is nil. a retune brings
> it back up, but plate and load and in completely different positions. Ive
> heard there's a capacitor somewhere thats the culprit????
> 
> 73 and hope to hear from someone de Neil G0JHC.
> 
> 
> 
> 

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