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

[dog]

I mean the bad ones, how did you determine they were bad?

On 1/23/2019 07:23, Larry H wrote:
> Dave, I tested the new cap only for leakage at the rated voltage (500 v)
> before installation.  After installation, for correct operation during warm
> up.
>
> Regards, Larry
>
> On Tue, Jan 22, 2019 at 12:09 PM dog <agfa at hughes.net> wrote:
>
>> 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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