Service data for Defiant MSH546 - UK Vintage Radio Repair and Restoration Discussion Forum

Dave Moll · 22nd Jul 2007, 6:26 pm

I am unable to find any service data for the above in any of the usual places (Paul's service, BVWS CDs, R&TVS, Jonz valve page), and wonder whether anyone knows a source of data for it.

It is an LW/MW/SW set with five Mazda valves (TH41, VP41, HL41/DD, PEN45, OO6(?)).

Dave Moll · 19th Aug 2007, 10:14 pm

I infer from the lack of response that no one is able to help me on this one, but I thought I would have one more try in case anyone who can help missed it first time round.

yestertech · 19th Aug 2007, 11:09 pm

Dave, as you're probably aware, Defiant data can be somewhat scarce ! The Murphy A92 valve line up is not too disimilar ( excepting the RF Amp SP41 ) and I'm sure there are others. Did you need alignment details or is there a fault which can be discussed ?
BTW Is this a bakelite set ? - Andy

PS The last valve in your line up is UU6 , I believe ?

Dave Moll · 20th Aug 2007, 10:42 am

Quote:

Originally Posted by setsappeal

Did you need alignment details or is there a fault which can be discussed ?

At present the RF side is totally dead. I have replaced all the waxies, but like to have service info. before proceeding any further.

Quote:

BTW Is this a bakelite set ? - Andy

Yes it is - a raher nice walnut burr effect.

Quote:

PS The last valve in your line up is UU6 , I believe ?

That would make more sense.

yestertech · 20th Aug 2007, 12:02 pm

Dave, I've realised that one of the sets I have here for service is a 546. This was purchased as working.( needs alignment check and some caps changed ) This will be here until late Sept. so if you want any voltage checks or pics to assist you, please let me know.....Andy

Dave Moll · 21st Aug 2007, 9:25 am

Thanks for that offer. I will let you know once I am in a position to ask any appropriate questions.

22nd Jul 2007, 6:26 pm	#1
Dave Moll Dekatron Join Date: Feb 2005 Location: West Cumbria (CA13), UK Posts: 6,127	Service data for Defiant MSH546 I am unable to find any service data for the above in any of the usual places (Paul's service, BVWS CDs, R&TVS, Jonz valve page), and wonder whether anyone knows a source of data for it. It is an LW/MW/SW set with five Mazda valves (TH41, VP41, HL41/DD, PEN45, OO6(?)). __________________ Mending is better than Ending (cf Brave New World by Aldous Huxley)

19th Aug 2007, 10:14 pm	#2
Dave Moll Dekatron Join Date: Feb 2005 Location: West Cumbria (CA13), UK Posts: 6,127	Re: service data for Defiant MSH546 I infer from the lack of response that no one is able to help me on this one, but I thought I would have one more try in case anyone who can help missed it first time round. __________________ Mending is better than Ending (cf Brave New World by Aldous Huxley)

19th Aug 2007, 11:09 pm	#3
yestertech Nonode Join Date: Dec 2002 Location: Coulsdon, Surrey, UK. Posts: 2,132	Re: service data for Defiant MSH546 Dave, as you're probably aware, Defiant data can be somewhat scarce ! The Murphy A92 valve line up is not too disimilar ( excepting the RF Amp SP41 ) and I'm sure there are others. Did you need alignment details or is there a fault which can be discussed ? BTW Is this a bakelite set ? - Andy PS The last valve in your line up is UU6 , I believe ?

20th Aug 2007, 12:02 pm	#5
yestertech Nonode Join Date: Dec 2002 Location: Coulsdon, Surrey, UK. Posts: 2,132	Re: service data for Defiant MSH546 Dave, I've realised that one of the sets I have here for service is a 546. This was purchased as working.( needs alignment check and some caps changed ) This will be here until late Sept. so if you want any voltage checks or pics to assist you, please let me know.....Andy

21st Aug 2007, 9:25 am	#6
Dave Moll Dekatron Join Date: Feb 2005 Location: West Cumbria (CA13), UK Posts: 6,127	Re: service data for Defiant MSH546 Thanks for that offer. I will let you know once I am in a position to ask any appropriate questions. __________________ Mending is better than Ending (cf Brave New World by Aldous Huxley)