I've begun recapping the Viking II I'm working on. The dual 15Uf/150V cap
connected to the 6AL5 has the positive sides of the cap going to the 6AL5 and
choke and the negative side going to ground. Since this guy is intended to
produce negative voltage and the connection is to the plates of
Hi Arnie: be careful with the answers you get, if this is a simple full wave
I would expect the plates to be tied together and only one cap. I am not
familer with Vikings, but hopefully you get an answer from someone that
knows of what they speak. I have seen some strange circuits that made no
I don't have a Viking II any more, but the schematic certainly shows
the two negative leads of C12-C13 (dual 15uf/150v) going to either
side of the bias supply choke and the positive lead to ground. In the
photo in the manual it looks like this dual cap indeed has two black
(negative) leads and a
well I am going to stir the pot again with my probable final comments on my
SDR-IQ. first the good, never had a panadapter or bandscope, it works great
for that. The filters are very good. The issues to me are the following, it
is noisy, to itself and also to a receiver on the same antenna,
Did you try adjusting the rf and IF gain settings? The IF gain adds a lot of
noise using spectravue...
Also, what programs did you use with the sdr-iq?
Winrad seems to have much better audio with less noise.
I don't often use the sdr-iq as a receiver, sometimes I use it to listen in
the den, as
Ed:
I wonder if you might be so kind as to e-mail your research on RFI in your
HVAC system. Please send to coastal...@coastalnow.net (no file size limit).
It too have done a lot of searching in my home for sources of noise. First
by running my radio from a battery and tripping the main circuit
Don't know enough about the 5000's receiver, but a couple years
ago, I talked with W5GI on 3.880 as he was shaking out the prototype.
None the old buzzards, nor I, could tell it from a plate-modulated
rig. I've heard several on the air since, and they seem to have pretty
decent transmit
Hi Bernie,
I have gone back and forth on the receive audio question with my rigs.
I have never had a PC controlled receiver, but I have a Kenwood TS870
which is a 24 bit dsp firmware receiver. I have the 1000MP Mk V also
and I agree that the stock audio is not very good. I widened the
stock 6
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