[R-390] Question

[rbethman]

Roger,

That is the Y2K-R3.

That DOES appear to have an error!

What is pointed at and called out *AS* C-533 I believe is actually C-553.

It indeed has one end tied to L-505, and while NOT apparent, is most 
likely tied to the switch wafer.

So I added the "CREW" that is working on the latest version of the Y2K 
to be/is being collected and "built".

Bob - N0DGN



On 4/22/2011 6:37 PM, rkofler at aol.com wrote:
> Thank you Bob. That is clear enough. Sometime, take a look at the Y2K 
> Manual chapter 12 page 5. I'm sure its not bad info. I'm probably just 
> reading it wrong.
>
> Thanks again to all.
> Roger
>
> -----Original Message-----
> From: rbethman <rbethman at comcast.net>
> To: r-390 at mailman.qth.net
> Cc: rkofler at aol.com <rkofler at aol.com>; n4buq at knology.net
> Sent: Fri, Apr 22, 2011 2:52 pm
> Subject: Re: [R-390] Question
>
> Roger,
>
> Then I would have to say that there is definitely some bad info 
> *someplace*!
>
> There is only one "model" of the IF subchassis for the R-390A.  Either
> it is the early version, which has NO trimmers for the filters, then the
> later one WITH trimmers for the filters.
>
> I have an EARLY one, NO trimmers, BUT it is stamped MOD 1.
>
> C-553 is STILL there - and in the SAME place!  It IS a paper cap in
> "most" IF Chassis'.  I have found a Sprague Vitamin Q in others.
>
> In ANY event - REPLACE IT as stated on Chuck Rippel's page!
>
> If it isn't replaced, a surge CAN take out whichever filter is in-line!
>
> [Knock on wood!  Haven't lost one yet!]
>
> Bob - N0DGN
>
> On 4/22/2011 5:40 PM, rkofler at aol.com wrote:
>> Thank you for all the responses. What I meant was, in the Y2K Manual,
>> there seems to be two models of IF sub-chassis, the older unmodified
>> model, and the newer MOD 1 sub-chassis. In the drawing of the older
>> chassis, C-553 is plainly visible. On the drawing of the newer MOD 1
>> chassis, C-553 is not listed. The reason I mentioned the trimmers on
>> top of the filters is that the manual mentions that as a way to tell
>> which model of chassis it is. If the filters have trimmers on top, it
>> is the newer MOD 1 chassis.
>>
>> Maybe I'm reading the manual wrong.
>>
>> Roger
>
>
>
>

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