diyAudio (
-   Tubes / Valves (
-   -   Cary 845 schematics (

soulmerchant 12th July 2009 09:19 PM

Cary 845 schematics
Dear all,

I am looking for the schematic for the Cary 845 (also known as Cary CAD 845 - not the SEI version though).


soulmerchant 13th July 2009 12:17 PM

Also, does anyone have some experience with this amplifier?

I have found something quite curious so far - There is a faint hum on the left channel. This may be due to a design flaw, or a modification by a previous owner (I am not yet sure - therefore the schematic would help a lot). The heater power transformer is separate in this amp, and is actually located directly below the left output tranny... I am about 99% sure that this causes the hum.

The hum is admittedly very minor and I am probably too much of a perfectionist... I took a LOT of care in transformer placement in my own SE amplifiers and they don't hum at all.

In any case, it would be nice to know if others have experience with this amp.

korneluk 13th July 2009 12:39 PM

I have a pair of the bigger Cary 805B. I spoke to Dennis Had personally and he recommends using a cheater plug on the power cable to eliminate all hum.

If you'd like the service manual/schematics for the 805B, they are available oline (with a bit of searching), or ping me and I'll send you a copy.

-- jose k.

soulmerchant 13th July 2009 04:43 PM

I use a balanced input on this beast - a transformer volume control (TVC). So I am very hesitant to take away the only ground it sees by using a cheater plug.

I really think the problem is with the original layout. But there appears to be no other place to put the heater transformer...

Except maybe under the HT transformer. I will see if it could fit later this evening.

BTW - I contacted Cary and they told me that they can't send me the schematic for this amplifier because it is in Dennis Had's head! :D

edit: fix typo.

vt4c 19th July 2009 11:51 AM

I've a copy of Cary Audio's - CAD-805C service manual with schematic....Is this the version you're looking for?

bigpappastevens 26th March 2011 08:14 AM

hi can you send me a schematic to the cary 805b amp

commstech 29th March 2011 03:17 PM


Originally Posted by vt4c (
I've a copy of Cary Audio's - CAD-805C service manual with schematic....Is this the version you're looking for?

kwok, plse send me the schematic too.

bigpappastevens 30th March 2011 03:48 AM

yes the cary 805c is ok

khunpk 25th April 2012 12:54 PM

Please send me a copy of 805c schematicdiagram.

sjs 26th April 2012 02:25 PM

you could try this one Cary 805C service Manual

All times are GMT. The time now is 07:15 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2