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-   -   Cary 845 schematics (http://www.diyaudio.com/forums/tubes-valves/147414-cary-845-schematics.html)

soulmerchant 12th July 2009 10:19 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).

Thanks!

soulmerchant 13th July 2009 01:17 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 01:39 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 05:43 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 12:51 PM

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 09:14 AM

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

commstech 29th March 2011 04:17 PM

Quote:

Originally Posted by vt4c (Post 1883448)
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 04:48 AM

yes the cary 805c is ok

khunpk 25th April 2012 01:54 PM

Please send me a copy of 805c schematicdiagram.

sjs 26th April 2012 03:25 PM

you could try this one Cary 805C service Manual


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