Re: LF: Racal 5501

[lawrence mayhead <laurie.mayhead@googlemail.com>]

Hi David,
I presume that was one of the diodes in the Guard circuit? Actually I've moved the units around, and its definately the unit,
 not its location. But thanks anyway.
73 Laurie.

2009/5/5 <g0mrf@aol.com>

Hi Laurie.

 

I recall that when I first powered up my Decca, it had low output on one module. That turned out to be a blown diode in the power recovery unit.  - It's been so long I've forgotten the full detail.

 

73

 

David

Hi Laurie, 
I have a spare Power Amp Module 5501 but it is also faulty. However, the fault is clear - it just has blown power FETs. 
You can have it for free - you should be able to make a good one from the two faulty ones 
I thought I had some spare power FETs but I can't find them at the moment 
 
Regards 
 
Peter, G3LDO 
> 
> Does anyone have a Racal Power Amp Module 5501 surplus to requirments > that I could buy? 
> One of the modules in my Decca TX has developed a fault, power down to > about a third, 
> so far can't find the fault. 
> 73 Laurie G3AQC 

-----Original Message-----
From: Peter Dodd <g3ldo@ukonline.co.uk>
To: rsgb_lf_group@blacksheep.org
Sent: Tue, 5 May 2009 16:53
Subject: Re: LF: Racal 5501

Hi Laurie, 
I have a spare Power Amp Module 5501 but it is also faulty. However, the fault is clear - it just has blown power FETs. 
You can have it for free - you should be able to make a good one from the two faulty ones 
I thought I had some spare power FETs but I can't find them at the moment 
 
Regards 
 
Peter, G3LDO 
> 
> Does anyone have a Racal Power Amp Module 5501 surplus to requirments > that I could buy? 
> One of the modules in my Decca TX has developed a fault, power down to > about a third, 
> so far can't find the fault. 
> 73 Laurie G3AQC 
 

---

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