[Heathkit] 54-143 transformer

Mon, 17 Feb 2003 16:31:18 -0600

Greetings, I am working on a SB401 that was sold new in Dec. 1966. The
original transformer is in
the unit and it is Part number 54-143. Just guessing later units had the
dual primary transformers
to allow for 220V op.     73, Mike K0AZ

PS the original construction manual is with the unit and also lists the
54-143 as the power tranny.

-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of [email protected]
Sent: Monday, February 17, 2003 3:31 PM
To: [email protected]; [email protected]
Subject: [Heathkit] 54-143 transformer

  I have a 54-143 transformer that I removed
from a "parts" SB-401, this isn't the transformer
listed in the manual. The manual listing shows it
should be part # 54-198.

 All the windings are the same as the 54-198 except
there is only one primary winding so it cannot
be wired for 220 v

 My question is, what kit did this transfomer originally
go with, or did some of the 401's not have 220 volt
capability?

73, Mark  WB8JKR
Support Amateur Radio, have a Ham for dinner
Member ARRL, QCWA, OTC, Society of Cable Telecommunication Engineers
WAS, WAC, WTO, DXCC, GJDXCC, VUCC 2M
Novice 3/71, General 8/72, Advanced 8/78, Extra 8/89

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