[R-390] Tracking down low sensitivity 0 to 8 mhz problem

[Larry H]

Hi Jordan,  I don't think you need to get out your vtvm, as your
dmv should be fine for E209 in standby.

Since C275 is a bypass in this circuit and nothing special going on there,
a little higher value will be fine.  No lower,  though.

Regards, Larry

On Sun, Mar 31, 2024 at 3:42 PM Jordan Arndt <Outposter30 at shaw.ca> wrote:

> Jacques and the group...
>
> I erred in one of my earlier replies. The VTVM DC probe should fit in the
> space to access E209, but the VTVM probe won't fit in that area because
> the
> probe has a vacuum tube and other cktry in the probe head. The probe cable
> feeds DC to the meter, while carrying B+ and filament voltage to the
> vacuum
> tube in the head.
>
> I'll break-out the VTVM tomorrow and compare the DC readings, but I'm
> pretty
> sure I've already done that in the not too distant past when I
> "refurbished"
> the VTVM and got it working properly.
>
> What difference would it make if C275 was the wrong value..?  Isn't it
> just
> a bypass cap on the 150V line..?
>
> 73...Jordan VE6ZT
>
>
>