Bruel & Kjaer 2006 - info needed - UK Vintage Radio Repair and Restoration Discussion Forum

Paul Galpin · 24th Jan 2021, 2:17 pm

can anyone help? I need the service manual to set up the gain of the thing, because either my MI 995 signal generator is wrong, or the 2006 is wrong, or perhaps both!

Just the 2006 circuit would help a lot, and/or Information on the 2007 which is similar would be great.

Diabolical Artificer · 25th Jan 2021, 8:03 am

Contact B&K, they're really helpful though may not have much like a service manual?

Andy.

m0cemdave · 26th Jan 2021, 9:49 pm

There isn't a service manual per se, it's the "Service Instructions" and is a supplement to the user manual.

Note that the input is 75 ohms, and the meter rectifier is peak reading.

If you have the probe unit, that is a simple cathode follower using an EC1000 wire-ended triode to provide a high impedance input, and there was a 60db capacitive attenuator that could be plugged into the front of the probe.

The 2006 is a single conversion receiver (11.3 MHz IF), and the 2007 is double-conversion with more complex circuitry.

If you can't find anything elsewhere, I should be able to scan my 2006 Service Instructions and circuit diagram.

Instruction manuals are online here:

2006

https://www.pearl-hifi.com/06_Lit_Ar...n%20Manual.pdf

2007 (1972)
https://www.pearl-hifi.com/06_Lit_Ar...n%20Manual.pdf

24th Jan 2021, 2:17 pm	#1
Paul Galpin Triode Join Date: Feb 2009 Location: Port Elizabeth, Eastern Cape, South Africa Posts: 21	Bruel & Kjaer 2006 - info needed can anyone help? I need the service manual to set up the gain of the thing, because either my MI 995 signal generator is wrong, or the 2006 is wrong, or perhaps both! Just the 2006 circuit would help a lot, and/or Information on the 2007 which is similar would be great.

25th Jan 2021, 8:03 am	#2
Diabolical Artificer Dekatron Join Date: Jul 2009 Location: Sleaford, Lincs. UK. Posts: 7,667	Re: Bruel & Kjaer 2006 - info needed Contact B&K, they're really helpful though may not have much like a service manual? Andy. __________________ Curiosity hasn't killed this cat...so far.

26th Jan 2021, 9:49 pm	#3
m0cemdave Octode Join Date: Feb 2009 Location: Bletchley, Buckinghamshire, UK. Posts: 1,223	Re: Bruel & Kjaer 2006 - info needed There isn't a service manual per se, it's the "Service Instructions" and is a supplement to the user manual. Note that the input is 75 ohms, and the meter rectifier is peak reading. If you have the probe unit, that is a simple cathode follower using an EC1000 wire-ended triode to provide a high impedance input, and there was a 60db capacitive attenuator that could be plugged into the front of the probe. The 2006 is a single conversion receiver (11.3 MHz IF), and the 2007 is double-conversion with more complex circuitry. If you can't find anything elsewhere, I should be able to scan my 2006 Service Instructions and circuit diagram. Instruction manuals are online here: 2006 https://www.pearl-hifi.com/06_Lit_Ar...n%20Manual.pdf 2007 (1972) https://www.pearl-hifi.com/06_Lit_Ar...n%20Manual.pdf Last edited by m0cemdave; 26th Jan 2021 at 10:06 pm. Reason: added links