[BC] Inexpensive exciter

Ron Castro ronc
Sun May 22 12:06:18 CDT 2005


I would look for a used QEI 675 or 695.  They're reliable, sound good and 
run 20 watts out.  They're also pretty cheap on the used market.

Also, PTEK sells a 5-30 watt  for $1,200.  Check 
http://www.ptekpower.com/new_page_2.htm .  I've never used one, so I can't 
speak from experience about them.

Ron Castro
Chief Technical Officer
Results Radio, LLC


----- Original Message ----- 
From: "Tom Taggart" <tpt at eurekanet.com>
To: <broadcast at radiolists.net>
Sent: Sunday, May 22, 2005 6:56 AM
Subject: [BC] Inexpensive exciter


> We built a non-com for a local school district about 4 years ago. 900 
> watts: 4 bay ERI driven by a 600 watt silicon valley
> amp (similar to what they used as solid state IPA's for some transmitters) 
> driven by an Continental 802A.  Unfortunately, a
> weakness of the 802 is that it uses a darlington pair to control the 
> output power. When this transistor shorts, the output
> goes to the full fifty watts, frying the input transistors in the power 
> amp.   So we put a smaller fuse in.  And for some
> reason the MJ3001's like to blow frequently at this site.
>
> Anyhoo, after replacing a MJ3001 for about the 3rd time, we're discussing 
> getting a new exciter.  The 802 would be retired
> to service in a translator.  Need about 15 watts to drive the Silicon 
> Valley, so would be looking for an exciter with about
> 20 watts.  Obviously doesn't need to be digital or very fancy, looking for 
> something under $2K.  Any suggestions?
>
>
>
>
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