It was an original Mk 2 ZA.10178 and will look at the serial number tonight but know it ends in 852 . Lot of thought before I started the project, but the original radio was in really bad shape. And may have been only up to recovering parts. Was missing most of the knobs, connectors were hacked and bent along with being soldered too and all sorts of weird changes and mods along with only one of the original British tubes.
Had been kicking around the idea of doing a WS-19 Mk3 being there are tons of them around to start with but this set was available out at Hamvention last year and despite the idea of its rarity decided that I wanted to build something to use that still gave the same feel of the British  WS sets with basically the same receiver, modulator and PA tube and the like but did away with needing the external variometer, the original weird system of heterodyning the receiver LO with the BFO to get the transmitter frequency  and the UHF AM radio. Think but not certain that many of the Mk2 and Mk3 sets used in the UK were later retrofitted by removing the UHF radio anyway by the military. 
Never warmed to the US built sets with their dual language stuff and the black face meter being they just did not feel like real WS sets and am happy with the appearance of the old Mk2
Think if it had a good clean face and front panel would have to do a real restoration but looking at that face and the fact that when I obtained it had to remove and straighten out the face plate before anything kind of happy with the way this one turned out. 
One thing about this radio is that it will be used in the field, know that the hard corps collectors will p/m about its only valid if it's all original and that's cool but just not what I wanted to do with this project. 
For your entertainment I am attaching the schematic of how the set is currently configured. You can see the crystal control for the transmitter, the new PA and reuse of the modulator transformer T5A the addition of V8B and T6A for providing a big audio output for driving a speaker and L21, L7 for somewhat of an input tank for the receiver. The one thing I have not resolved yet is the BFO and for now that's just floating off to the side but can't do CW anyway.
Will send out a couple pictures of the chassis tomorrow.





From: Jacques Fortin <[email protected]>
Sent: Wednesday, May 6, 2026 3:24 PM
To: [email protected] <[email protected]>; Ray Fantini <[email protected]>; [email protected] <[email protected]>; [email protected] <[email protected]>
Cc: [email protected] <[email protected]>; [email protected] <[email protected]>
Subject: RE: [MMRCG] Stuff at Dayton/Xenia and other thoughts


Hi Ray,

Congratulations for your WS #19 “MkV” !

It was seemingly a Mitcham Works (Philips) MkII initially, if.. the sn tag is the original one.

In it’s original form, it was already rare…

I cannot decipher the sn number from your picture however… what it is ?

 

73, Jacques, VE2JFE in Montreal