Grundig 4070M - UK Vintage Radio Repair and Restoration Discussion Forum

g0hze snowy · 24th Feb 2020, 9:12 pm

Hi, has anybody got a schematic for a GRUNDIG 4670 Valve table radio. looking to purchase the radio but I would like to be prepared to repair if required.
Thanks in anticipation, Snowy

Joe_Lorenz · 24th Feb 2020, 9:32 pm

Hi,

I do not have the manual you are looking for, but here you will find the 4570 schematics:

https://www.vintageshifi.com/reperto.../Grundig-2.php

I think the 4670 cannot be that much of a difference. ELL 80 amplifier were quite popular these days and are still a good choice for everyday listening. Some gents say the ELL 80 is hard to find today, but I do not agree, there's enough supply on ebay. And, after all, you could replace them by two EL 95 valves (same systems!). The real challenge is the tapped volume potentiometer, such are rare finds today!

Regards, Joe

g0hze snowy · 24th Feb 2020, 10:14 pm

Hi Joe
Thanks for your reply, I was wrongly advised of the model number, it should be 4070m, regards, Snowy

ms660 · 25th Feb 2020, 10:58 am

Quote:

Originally Posted by g0hze snowy

Hi Joe
Thanks for your reply, I was wrongly advised of the model number, it should be 4070m, regards, Snowy

https://nvhrbiblio.nl/schema/Grundig_4070.pdf

Lawrence.

crackle · 25th Feb 2020, 11:50 am

https://www.radiomuseum.org/r/grundi...70m_stere.html

Mike

g0hze snowy · 25th Feb 2020, 2:13 pm

Hi Lawrence/Mike
Thanks very much for the schematics pertaining to the Grundig 4070s, hoping to collect soon and maybe sort it but I do have an Elecraft K2 on the bench at the moment. thanks once again, Snowy

24th Feb 2020, 9:12 pm	#1
g0hze snowy Hexode Join Date: Oct 2013 Location: Peterborough, Cambridgeshire, UK. Posts: 336	Grundig 4070M Hi, has anybody got a schematic for a GRUNDIG 4670 Valve table radio. looking to purchase the radio but I would like to be prepared to repair if required. Thanks in anticipation, Snowy

24th Feb 2020, 9:32 pm	#2
Joe_Lorenz Hexode Join Date: Dec 2019 Location: Hohenroda, Eastern Hesse, Germany Posts: 460	Re: Grundig 4670 Hi, I do not have the manual you are looking for, but here you will find the 4570 schematics: https://www.vintageshifi.com/reperto.../Grundig-2.php I think the 4670 cannot be that much of a difference. ELL 80 amplifier were quite popular these days and are still a good choice for everyday listening. Some gents say the ELL 80 is hard to find today, but I do not agree, there's enough supply on ebay. And, after all, you could replace them by two EL 95 valves (same systems!). The real challenge is the tapped volume potentiometer, such are rare finds today! Regards, Joe

24th Feb 2020, 10:14 pm	#3
g0hze snowy Hexode Join Date: Oct 2013 Location: Peterborough, Cambridgeshire, UK. Posts: 336	Re: Grundig 4670 Hi Joe Thanks for your reply, I was wrongly advised of the model number, it should be 4070m, regards, Snowy

25th Feb 2020, 11:50 am	#5
crackle Rest in Peace Join Date: Mar 2011 Location: Basildon, Essex, UK. Posts: 4,100	Re: Grundig 4670 https://www.radiomuseum.org/r/grundi...70m_stere.html Mike

25th Feb 2020, 2:13 pm	#6
g0hze snowy Hexode Join Date: Oct 2013 Location: Peterborough, Cambridgeshire, UK. Posts: 336	Re: Grundig 4070M Hi Lawrence/Mike Thanks very much for the schematics pertaining to the Grundig 4070s, hoping to collect soon and maybe sort it but I do have an Elecraft K2 on the bench at the moment. thanks once again, Snowy