Andrew Rowe Posted June 18, 2017 Share Posted June 18, 2017 I have a 155-2B CAV regulator , 42amps at 12 volt. Does anyone know what sort of vehicle this belongs to? I believe it is WW2 era , it has a tag on it that says it replaces 37S-5X and 37S-4XT. Dingo ? Truck ? Was there ever a book put out by CAV that listed model numbers and their applications? Any help would be useful , Cheers Andrew. Quote Link to comment Share on other sites More sharing options...
Adrian Barrell Posted June 18, 2017 Share Posted June 18, 2017 Daimler armoured car had the 155-2B as one option, there may well have been other applications. Quote Link to comment Share on other sites More sharing options...
monty2 Posted June 18, 2017 Share Posted June 18, 2017 dingo is the 141-1 type Quote Link to comment Share on other sites More sharing options...
Richard Farrant Posted June 18, 2017 Share Posted June 18, 2017 dingo is the 141-1 type The 141-1 was for the Mk2 Dingo. The Mk3 Dingo with two speed dynamo had the 155-4 control panel Quote Link to comment Share on other sites More sharing options...
Richard Farrant Posted June 18, 2017 Share Posted June 18, 2017 I have a 155-2B CAV regulator , 42amps at 12 volt. Does anyone know what sort of vehicle this belongs to? I believe it is WW2 era , it has a tag on it that says it replaces 37S-5X and 37S-4XT. Dingo ? Truck ? Was there ever a book put out by CAV that listed model numbers and their applications? Any help would be useful , Cheers Andrew. Hi Andrew, According to the 6MT4 Vocab, the 155-2B was fitted to Cromwell, Challenger, Centurion, Harry Hopkins, Coventry Armd Car and Comet. Quote Link to comment Share on other sites More sharing options...
Adrian Barrell Posted June 18, 2017 Share Posted June 18, 2017 Centurion is 24volt and uses a 168-3. I agree with the others. Quote Link to comment Share on other sites More sharing options...
Lauren Child Posted June 18, 2017 Share Posted June 18, 2017 (edited) I'm looking for one if it's available? It is indeed Cromwell and Comet. Centurion did also use 155, but it's a 155-8X. Also 168 as mentionned. 155 is a suppressed version of 141 (if I'm remembering correctly) so there's some crossover. Edited June 18, 2017 by Lauren Child mistake on part number and relation to 168 Quote Link to comment Share on other sites More sharing options...
Lauren Child Posted June 18, 2017 Share Posted June 18, 2017 (edited) This is the Cav pamphlet to look for. Though I may be wrong on the difference between 141 and 155. Edited June 18, 2017 by Lauren Child Quote Link to comment Share on other sites More sharing options...
Lauren Child Posted June 18, 2017 Share Posted June 18, 2017 One from the workshop manual. Quote Link to comment Share on other sites More sharing options...
Lauren Child Posted June 18, 2017 Share Posted June 18, 2017 Ah, 141 looks very different inside - I was mistaken on the difference. Quote Link to comment Share on other sites More sharing options...
Richard Farrant Posted June 18, 2017 Share Posted June 18, 2017 Centurion is 24volt and uses a 168-3. I agree with the others. Hi Adrian, Just shows that errors crept in War Office publications and were never amended ! Actually I can add another vehicle to the list that used the 155-2B, that is the Humber Scout Car Mk1 and 2 (this comes from the vehicle parts book) Quote Link to comment Share on other sites More sharing options...
Adrian Barrell Posted June 18, 2017 Share Posted June 18, 2017 Given its location, I suspect it is from a Daimler A/C. Unless it's a more recent import! Quote Link to comment Share on other sites More sharing options...
Andrew Rowe Posted June 18, 2017 Author Share Posted June 18, 2017 You can read me like a book! Yes Adrian I think I concur with you, as I picked up some brand new control boards for the Loyd carrier along with this one, quite an interesting subject though , Cheers Andrew Quote Link to comment Share on other sites More sharing options...
Adrian Barrell Posted June 18, 2017 Share Posted June 18, 2017 My Humber Scout parts list just shows it as a 155-2. I wonder what the B signifies? Quote Link to comment Share on other sites More sharing options...
Richard Farrant Posted June 18, 2017 Share Posted June 18, 2017 My Humber Scout parts list just shows it as a 155-2. I wonder what the B signifies? Adrian, My parts list is First Edition August 1944, definitely 155-2B. Quote Link to comment Share on other sites More sharing options...
Lauren Child Posted June 18, 2017 Share Posted June 18, 2017 My Humber Scout parts list just shows it as a 155-2. I wonder what the B signifies? Alas no idea on what the B means on the end model number - my guess would be a revision to the original, although looking at a parts list for a similar board (189) the letters used are A, B, M and T with no obvious difference. If it's a read across from the main number, the letters seem to mean different things on different regulators, so 37A indicates ammeter terminals on a 37, while 155A indicates compensated voltage on the 155. On the 75 (which will be popular with the softskin fans on the forum) 75B indicates for use with dynamo without field resistance, and 75BT (as on Bedford, Ford etc.) is the same but with a special low temperature regulator. Quote Link to comment Share on other sites More sharing options...
Adrian Barrell Posted June 19, 2017 Share Posted June 19, 2017 Adrian,My parts list is First Edition August 1944, definitely 155-2B. Very interesting, mine is dated July 1943........ It only covers Mk I however! Quote Link to comment Share on other sites More sharing options...
fv1609 Posted June 19, 2017 Share Posted June 19, 2017 I have a 155-2B CAV regulator , 42amps at 12 volt. Does anyone know what sort of vehicle this belongs to? I believe it is WW2 era , it has a tag on it that says it replaces 37S-5X and 37S-4XT. 37S series seemed to use H5 regulators & BCK-1 cutouts. The details of the replacements appear in EMER POWER 0 133 Table 1 1955 As far as applications go, these were the RAF applications in 1954 taken from AP 25151E Section 16E MT Electrical Equipment 141-1 Humber LRC IIIA 141-2 Bedford MWR 141-3X Bedford QLR 142-1 Bedford MW, QL Quote Link to comment Share on other sites More sharing options...
Toolman Posted November 9, 2019 Share Posted November 9, 2019 On 6/19/2017 at 10:14 AM, fv1609 said: 37S series seemed to use H5 regulators & BCK-1 cutouts. The details of the replacements appear in EMER POWER 0 133 Table 1 1955 As far as applications go, these were the RAF applications in 1954 taken from AP 25151E Section 16E MT Electrical Equipment 141-1 Humber LRC IIIA 141-2 Bedford MWR 141-3X Bedford QLR 142-1 Bedford MW, QL Hi Clive I hope you are keeping well. I have a number of CAV BCK-30 cut-outs and I am struggling to identify the fitment. The NSN is 2590-99-802-9183. Would you happen to know in which application they were used? Kind regards Matt Quote Link to comment Share on other sites More sharing options...
simon king Posted November 9, 2019 Share Posted November 9, 2019 MWR fitments need clarifying for posterity if nothing else... Engine generator uses type 142 on the engine bulkhead Auxiliary (battery charging) dynamo uses type 141/2 in the rear body Quote Link to comment Share on other sites More sharing options...
fv1609 Posted November 9, 2019 Share Posted November 9, 2019 2590-99-802-9183 identifies it in VAOS as LV6/MT4/CB/BCK30 although one could have constructed that oneself, such is logic of VAOS unlike the NIIN of NSNs. It also identifies a Prestolite no. 1871300 Unfortunately there is no RAF Vocab identified but as a double check I went through the AP 1086 Section 16E & drew a blank. Had it been listed it would have given a vehicle application, unlike VAOS that rarely states an application. It is a case of having a hunch about a vehicle then checking in the parts lists for a match. From EMER POWER is see BCK-30T was used in two applications. I assume T might means tropicalised. 24v & used in Regulator C25T fitted in Control Boards 155/6X & 155/9X. MWR used BCK-3 in Control Board 141-2 Quote Link to comment Share on other sites More sharing options...
Toolman Posted November 9, 2019 Share Posted November 9, 2019 Thanks Clive, and Simon for your anwer. Clive, you are bang on with the prestolite parts ref. I have just uncovered that on the box. I thought they might be for the Generator panels but from what I can see from the parts manuals they are BCK-37 and 38 which were used in them. Kind regards, and thank you again for your help. Matt Quote Link to comment Share on other sites More sharing options...
monty2 Posted October 25, 2023 Share Posted October 25, 2023 Which CAV fits Humber Armoured Can MkIV Quote Link to comment Share on other sites More sharing options...
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