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Re: [Amps] Replacement plate choke for Alpha 76

To: <rbonner@qro.com>, <amps@contesting.com>
Subject: Re: [Amps] Replacement plate choke for Alpha 76
From: "Van K7VS" <wa7fab@cdsnet.net>
Date: Tue, 22 May 2007 09:19:19 -0700
List-post: <mailto:amps@contesting.com>
Mr. Bonner.  I MAY have been using Radio Shack parts for probably more years 
than you have been around (beginning with the original Radio Shack Store in 
the early 50's located on Tremont Street in Boston) and have been very happy 
they are there although they do not carry as much as they used to in the 
parts catagory.  I have been pleased to have a store close by that I can run 
down to to pick up a part when I need it.  Thank you very much.    You 
sounded like for some reason you were almost ashamed to pick up a part at a 
Radio Shack store.  Just be thankful you found what you were looking for 
when you went there!  And that they are around when we need something they 
still sell in their electronic parts inventory.  Van, K7VS
----- Original Message ----- 
From: "Robert Bonner" <rbonner@qro.com>
To: "'Amps Amps'" <amps@contesting.com>
Sent: Tuesday, May 22, 2007 5:02 AM
Subject: Re: [Amps] Replacement plate choke for Alpha 76


> Radio Shack part for the
> cathode choke.  They have a 100uH choke and it is cheap, built with good
> wire.  NEVER had a failure or a funky resonance using one of them.
>
> This is the only part RS sells that is worth any salt in my opinion and 
> they
> have been selling them for 25 years.
>
> Now I will go tangent since I mentioned RS:
>
> Since RS is a totally useless radio entity, they'll probably discontinue 
> the
> choke soon and replace it with more 435MHz periodic emitters.  Try driving
> around on 435MHz (435.135 if I remember correctly) and listen to all the
> wireless thermometers bweeping every few seconds.  I live in a town of 
> 150K
> people and anywhere in town can hear no less than 10 of them at one time
> chirping away right in the middle of the ham band.
>
> I'm just a little touchy about this subject and went semi crazy in a store
> about 4 years ago...  Wrote RS and called ARRL, its perfectly legal if the
> timing is only so many bweeps per minute (per unit). But as a part
> "whatever" device must accept interference...  Says nothing about the
> interference it causes.. The problem is with 25 of them in your 
> neighborhood
> they are a PLASMA.  When I'm active on 432 about once a month I sweep my
> neighborhood clean with 500K ERP.  I assume the things burst into flames 
> on
> the wall of the house and get thrown away. Eventually the batteries go 
> dead
> on the sensor (transmitter) outside the house.
>
> I've done several drivebys with the IC-706 and its pretty easy to DF the
> things.  If a guy was really a militant I suppose you just act like a 
> meter
> reader and steal all the sensors out of the yards.  I'm off 432 right now
> and assume my neighbors are all standing in long lines again at the damn
> store buying these things as I type this.
>
> I had another thought to build a BWEEPER myself with about 500W and always
> have it say 50 below zero.  They'd take the things right back....  The guy
> would install it and it would read 50 below, pretty funny.  That would
> prolly neutralize my whole town.
>
> BOB DD
>
> -----Original Message-----
> From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
> Behalf Of Dan Hearn
> Sent: Monday, May 21, 2007 11:12 PM
> To: kk4tr; amps@contesting.com
> Subject: Re: [Amps] Replacement plate choke for Alpha 76
>
> Joe;: Along that line I believe I once saw a mod for the RFC on the 76A as
> it had an undesired resonance on, I believe, 15 or 17m. The guy made a
> single turn of insulated buss wire around the choke. He moved it up and 
> down
> until the resonance was moved into the CB band so it would work on 15 (
> could have been 17m). If it ever was bought by a CBer smoke would ensue. I
> think the tip was in some small DX magazine, not one of the present
> magazines. FWIW. 73, Dan, N5AR
>
> -----Original Message-----
> From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com]On
> Behalf Of kk4tr
> Sent: Monday, May 21, 2007 5:56 PM
> To: amps@contesting.com
> Subject: [Amps] Replacement plate choke for Alpha 76
>
>
> Does anyone have a source for a replacement plate choke for an alpha 76.
> The value on this one is 15 MH @ 1 amp.  The RF parts version for
> replacement is 225mh @ 1 amp.  The rf parts replacvenet has screwed up the
> amp even more!! Now the amp doesn't work at all!!  Any Ideas out there?? 
> Oh
> by the way  Alpha does not list any replacement for this part on the
> website.
>
> Joe KK4TR
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