Grundig Concert Boy 201 E - UK Vintage Radio Repair and Restoration Discussion Forum

Stewart · 21st Jul 2007, 12:25 pm

Can anyone help with information on this set?

A net search suggests that this is an early FM transistor portable dating from 1961/2.

I'm especially after a circuit diagram. The set is in waiting in line on the restoration bench after I aquired it at the recent Wotton Bassett meet. Its working but showing signs of slight distortion. That shouldn't be too hard to put right (says he) but a diagram will assist greatly - especially as there are 5 preset resistors on the panel. I can guess that two of them set up the output stage, and one might balance the ratio detector...but the others I haven't a clue about!

Paul_RK · 21st Jul 2007, 1:14 pm

Hello Stewart,

I just opened up my Concert-Boy Transistor 200, of very similar appearance, on the off chance of there being a circuit diagram loitering inside

No such luck, but it does at least appear that my set is the mains/battery version of yours and if information on the Concert Boy 200 can be found it would very likely cover your needs. I'd always wondered quite what manner of battery holders my radio had lost...

Paul

howard · 21st Jul 2007, 1:22 pm

Hello Stewart,

It is a 1961/2 German built 8 transistor set and if you PM me I'll send you the circuit diagrams for it.

Howard

Stewart · 21st Jul 2007, 1:42 pm

Thanks for the swift reply gentlemen!

Goodness - so there was a mains / battery version too eh! Sounds like the one to have! Quite a sophisticated set given the year...it must have been quite costly!

Those battery boxes need a little attention as it happens - at present the contacts are a tad twitchy!

Howard, I've sent a PM about the diagrams! Many thanks for that! The only "200" set I could find information for was a decade later on....

Herald1360 · 22nd Jul 2007, 3:34 pm

Interesting aerial setup- it looks like you could make up a near full size half wave dipole on FM out of it!

Chris

21st Jul 2007, 12:25 pm	#1
Stewart Retired Dormant Member Join Date: Jul 2003 Location: N.E. Surrey, UK. Posts: 361	Grundig Concert Boy 201 E Can anyone help with information on this set? A net search suggests that this is an early FM transistor portable dating from 1961/2. I'm especially after a circuit diagram. The set is in waiting in line on the restoration bench after I aquired it at the recent Wotton Bassett meet. Its working but showing signs of slight distortion. That shouldn't be too hard to put right (says he) but a diagram will assist greatly - especially as there are 5 preset resistors on the panel. I can guess that two of them set up the output stage, and one might balance the ratio detector...but the others I haven't a clue about! Attached Thumbnails

21st Jul 2007, 1:14 pm	#2
Paul_RK Dekatron Join Date: Nov 2003 Location: Fakenham, Norfolk, UK. Posts: 4,259	Re: Grundig Concert Boy 201 E Hello Stewart, I just opened up my Concert-Boy Transistor 200, of very similar appearance, on the off chance of there being a circuit diagram loitering inside No such luck, but it does at least appear that my set is the mains/battery version of yours and if information on the Concert Boy 200 can be found it would very likely cover your needs. I'd always wondered quite what manner of battery holders my radio had lost... Paul Attached Thumbnails

21st Jul 2007, 1:22 pm	#3
howard Nonode Join Date: May 2005 Location: Godalming, Surrey, UK. Posts: 2,593	Re: Grundig Concert Boy 201 E Hello Stewart, It is a 1961/2 German built 8 transistor set and if you PM me I'll send you the circuit diagrams for it. Howard

21st Jul 2007, 1:42 pm	#4
Stewart Retired Dormant Member Join Date: Jul 2003 Location: N.E. Surrey, UK. Posts: 361	Re: Grundig Concert Boy 201 E Thanks for the swift reply gentlemen! Goodness - so there was a mains / battery version too eh! Sounds like the one to have! Quite a sophisticated set given the year...it must have been quite costly! Those battery boxes need a little attention as it happens - at present the contacts are a tad twitchy! Howard, I've sent a PM about the diagrams! Many thanks for that! The only "200" set I could find information for was a decade later on....

22nd Jul 2007, 3:34 pm	#5
Herald1360 Dekatron Join Date: Feb 2007 Location: Leominster, Herefordshire, UK. Posts: 16,536	Re: Grundig Concert Boy 201 E Interesting aerial setup- it looks like you could make up a near full size half wave dipole on FM out of it! Chris