[Boatanchors] 3B28 Question

[K2GKK D C_Mac_ Macdonald]

Thanks for the update, Nick.  I think I was sorta close but no cigar!  HAR!

Just for grins, is there also a sub for the 816 rectifier tubes?

73 - Mac, K2GKK/5
(Since 30 Nov 53)
Oklahoma City, OK
USAF, Ret'd 61-81
FAA, Ret'd 94-10

________________________________
From: Nick England <navy.radio at gmail.com>
Sent: Wednesday, July 6, 2022 10:57
To: K2GKK D C_Mac_ Macdonald <k2gkk at hotmail.com>
Cc: Doug Hensley <w5jv at hotmail.com>; boatanchors mailman.qth.net <boatanchors at mailman.qth.net>
Subject: Re: [Boatanchors] 3B28 Question

3B28 is substitute for the smaller 866 mercury vapor rectifier
4B32 is substitute for the larger 872 mercury vapor rectifier
Nick England K4NYW
www.navy-radio.com<https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.navy-radio.com%2F&data=05%7C01%7C%7Cfaf50975639c40522bff08da5f68521e%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637927199004458335%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=Xsqq8nvM4I7JnnYFMvbfjYmDvg7M8ot7TfKl9QOQbCY%3D&reserved=0>


On Wed, Jul 6, 2022 at 11:11 AM K2GKK D C_Mac_ Macdonald <k2gkk at hotmail.com<mailto:k2gkk at hotmail.com>> wrote:
NoT absolutely sure but I think they are equivalent to 872 rectifiers but higher rated.

K2GKK/5 in OKC,OK


Sent from my iPhone

On Jul 6, 2022, at 09:23, Doug Hensley <w5jv at hotmail.com<mailto:w5jv at hotmail.com>> wrote:

​I've come across a pair of 3B28's that are the size of 810's
and I had to read the label twice to make sure of what I
was looking at.  Most 3B28's that I have are the size of
large 5R4's.  These are huge


Has anyone else seen any this size and have any information
to share on them?

TIA,

Doug W5JV