Decca Console TV of 1949 - I.D. anyone please? - UK Vintage Radio Repair and Restoration Discussion Forum

Atlantic 52 · 11th Dec 2021, 11:01 pm

Hello all,
Many years ago (1974!) I acquired a service manual for a Decca Console TV that used a Mazda CRM121 tube. The drawings in it are dated 1949 and I wondered if anyone knows if it had a model number? The manual doesn't give a model name or number anywhere!
Its a lot like the Decca 121 Projections set in cabinet design and I wonder if one of these nice looking sets has survived.
Many thanks, George

radiomarktv · 11th Dec 2021, 11:22 pm

George I think the model is a 101. One has just been sold in the auction at Royal Wootton Bassett.
Mark.

peter_scott · 12th Dec 2021, 9:57 am

https://www.bvws.org.uk/publications..._3.pdf#page=26

Heatercathodeshort · 12th Dec 2021, 10:19 am

Plessey MK1 or 2 chassis, not the earlier mains EHT chassis often referred to as the MK1.
The difference between the MK1 and 2 is mainly the picture shift circuitry employed in the Mk2.
Mazda CRM121B CRT usually flat but the mains transformers CRT heater winding has a 6.3v tap for a Mullard. John.

FERNSEH · 12th Dec 2021, 12:17 pm

I'm recreating a Decca 101 from a bodged up projection TV cabinet:

https://www.vintage-radio.net/forum/...d.php?t=176820

DFWB.

Atlantic 52 · 12th Dec 2021, 6:58 pm

Thanks everyone, its great to see some have survived and what a cabinet! The veneers used & quality were top notch.

bionicmerlin · 12th Dec 2021, 11:15 pm

Quote:

Originally Posted by radiomarktv

George I think the model is a 101. One has just been sold in the auction at Royal Wootton Bassett.
Mark.

I was the one who bought it.
I didn’t intend to buy it but as no one else bid I thought it’s fate might not be a favourable one.
It’s a nice looking set and I will probably put it near the top of the to do list Andy

Heatercathodeshort · 13th Dec 2021, 10:29 am

Good luck with it. I would consider this Plessey chassis to be one of the easiest to overhaul. Very simple, reliable circuit with the minimum of bling. A typical Plessey product. John.

bionicmerlin · 13th Dec 2021, 2:07 pm

Thanks for the info John. I’m sure even if it’s easy to work on I will require some help from the good people on here I will start a new thread when I’m ready Andy

11th Dec 2021, 11:01 pm	#1
Atlantic 52 Pentode Join Date: Feb 2014 Location: Aldershot, Hampshire, UK. Posts: 108	Decca Console TV of 1949 - I.D. anyone please? Hello all, Many years ago (1974!) I acquired a service manual for a Decca Console TV that used a Mazda CRM121 tube. The drawings in it are dated 1949 and I wondered if anyone knows if it had a model number? The manual doesn't give a model name or number anywhere! Its a lot like the Decca 121 Projections set in cabinet design and I wonder if one of these nice looking sets has survived. Many thanks, George Attached Thumbnails

11th Dec 2021, 11:22 pm	#2
radiomarktv Pentode Join Date: Oct 2003 Location: Henley on Thames, Oxfordshire, UK. Posts: 244	Re: Decca Console TV of 1949 - I.D. anyone please? George I think the model is a 101. One has just been sold in the auction at Royal Wootton Bassett. Mark.

12th Dec 2021, 9:57 am	#3
peter_scott Dekatron Join Date: May 2003 Location: Edinburgh, UK. Posts: 3,274	Re: Decca Console TV of 1949 - I.D. anyone please? https://www.bvws.org.uk/publications..._3.pdf#page=26 __________________ http://www.nostalgiatech.co.uk https://www.youtube.com/c/PeterScott/videos

12th Dec 2021, 10:19 am	#4
Heatercathodeshort Dekatron Join Date: Jun 2005 Location: Warnham, West Sussex. 10 miles south of DORKING. Posts: 9,147	Re: Decca Console TV of 1949 - I.D. anyone please? Plessey MK1 or 2 chassis, not the earlier mains EHT chassis often referred to as the MK1. The difference between the MK1 and 2 is mainly the picture shift circuitry employed in the Mk2. Mazda CRM121B CRT usually flat but the mains transformers CRT heater winding has a 6.3v tap for a Mullard. John.

12th Dec 2021, 12:17 pm	#5
FERNSEH Dekatron Join Date: Mar 2005 Location: Gateshead, Tyne and Wear, UK. Posts: 7,444	Re: Decca Console TV of 1949 - I.D. anyone please? I'm recreating a Decca 101 from a bodged up projection TV cabinet: https://www.vintage-radio.net/forum/...d.php?t=176820 DFWB.

12th Dec 2021, 6:58 pm	#6
Atlantic 52 Pentode Join Date: Feb 2014 Location: Aldershot, Hampshire, UK. Posts: 108	Re: Decca Console TV of 1949 - I.D. anyone please? Thanks everyone, its great to see some have survived and what a cabinet! The veneers used & quality were top notch.

13th Dec 2021, 10:29 am	#8
Heatercathodeshort Dekatron Join Date: Jun 2005 Location: Warnham, West Sussex. 10 miles south of DORKING. Posts: 9,147	Re: Decca Console TV of 1949 - I.D. anyone please? Good luck with it. I would consider this Plessey chassis to be one of the easiest to overhaul. Very simple, reliable circuit with the minimum of bling. A typical Plessey product. John.

13th Dec 2021, 2:07 pm	#9
bionicmerlin Heptode Join Date: May 2010 Location: Warminster, Wiltshire, UK. Posts: 684	Re: Decca Console TV of 1949 - I.D. anyone please? Thanks for the info John. I’m sure even if it’s easy to work on I will require some help from the good people on here I will start a new thread when I’m ready Andy __________________ I bet that car doesn't have a suppressor.