[R-390] R-390A IF deck caps in T501 or T502

[dog]

Larry, how did you test the 200pf caps? Did you test the actual cap? I 
haven't replaced mine yet, procrastinating.

Dave N3DT

On 1/22/2019 00:14, Larry H wrote:
> I received the 200 pf caps today that I ordered from Just Radios.  I put
> the original 39 pf cap (with -30 tempco) back in, that I had removed, and
> installed the new 200 pf.  It's working great.  IF warm up shows very
> little drift and good stability.  The size is very good for good fit with
> ample room in T501.  Both coils peak with ample tuning on both sides.
>
> Regards, Larry
>
>
> On Wed, Jan 16, 2019 at 1:20 PM Larry H <larry41gm at gmail.com> wrote:
>
>> Hi Dave,  Sorry your posts are not getting through.
>>
>> The 5% are fine as long as it will peak on adjustment, which it should.
>> Does 1 or both coils not peak in yours?  The easiest way to check is to rx
>> in cal, tune to signal, measure dc on diode load.
>>
>> Regards, Larry
>>
>> On Wed, Jan 16, 2019 at 7:20 AM dog <agfa at hughes.net> wrote:
>>
>>> Larry,
>>>
>>> For some reason my replies to the 390 list are not getting through. I
>>> might have to re-register, don't know. Anyhow, I've been having the same
>>> gain problem. I traced the jump in gain to T502 after much fiddling, but
>>> didn't get much farther, I sorta got burned out just finding that. I had a
>>> thread on it last summer. I have a bunch of dipped SM caps but they're 5%.
>>> Is it that important they be 2%? I thought that was what the adjustment in
>>> the coil is for? Oh, I see I've got a 200pf  5% 500V one. I may have
>>> another if I look through the pile. Most of what I have are 270pf. The 200
>>> is fairly small too, only 3/8" at the widest.
>>>
>>> Dave N3DT
>>> On 1/16/2019 00:02, Larry H wrote:
>>>
>>> Still Holding.  I ordered 20 of the 200 pf from justradios.   Hope they get
>>> here soon.
>>>
>>> Tomorrow I celebrate with Kielbasa and cold brewsky.
>>>
>>> Regards, Larry
>>>
>>> On Tue, Jan 15, 2019 at 6:21 PM Tisha Hayes <tisha.hayes at gmail.com> <tisha.hayes at gmail.com> wrote:
>>>
>>>
>>> Yea, at the prices for mica caps you definitely do not want to be
>>> shotgunning the replacements of those things through the deck.
>>>
>>> *Ms. Tisha Hayes, AA4HA*
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