[Johnson] Odd electrolytic value in Ranger

[howard holden]

Why not put two in series? You certainly have the room, there’s a 22 uF 450VDC on RFParts.com for $3.91,  for 11 uF, they’re just 0.6 X 1.6 inches, and I’m sure a diligent search will show others for slightly less. Plus you will have even more of a cushion on the voltage.  A high value resistor across each to even out the voltage, and you’re good to go. For my money better to be very safe than worry about any possibility of “originality”. That’s the approach I took with a Navigator about 15 years ago.

73, Howie WB2AWQ


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________________________________
From: johnson-bounces at mailman.qth.net <johnson-bounces at mailman.qth.net> on behalf of patrick at ae1pt.com <patrick at ae1pt.com>
Sent: Tuesday, October 18, 2022 10:14:31 AM
To: johnson at mailman.qth.net <johnson at mailman.qth.net>
Subject: [Johnson] Odd electrolytic value in Ranger

I was minding my own business in an antiques mall, and what did I see?  Why,
a Viking Ranger for $50.  I certainly could not leave it there, looking so
forlorn-and it followed me home.

It uses a 10mf @ 700V axial electrolytic in the HV supply.  The manual says
that things are in the 500VDC range for CW and Phone-but rises to 600VDC in
Standby.

I found one option with Mouser, but they want $36 for a Vishay-nearly what I
paid for the rig.  Having looked elsewhere, what I found was an MEIC brand
rated at 600WVDC, with a surge factor of 650VDC.  It's a smaller package
than the Vishay.

Does the latter have enough latitude to run the HV rail?  Or is there some
other alternative or cap that I might have missed that someone knows?

Any suggestions are appreciated!

PT

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