Fender Tweed Pro 5e5a Schematic Error?

[mjg]

I searched but couldn't find a thread for this. I was looking at the Fender Tweed 5e5a schematics that are floating around, and noticed what I think is an error:

The diode in the negative bias power supply (between the 10K and 56K resistors looks to me to be backward.

Could someone sanity check me?

Here is a link to one:
http://www.freeinfosociety.com/electron ... er5e5a.gif

Am I missing something?

[sepulchre]

Looks backwards. However, the symbol is like that on some of their other schematics as well (eg: 5E6-A) though the indicated polarity is correct. The 5F6 drawing has it right, polarity and symbol.

[mjg]

Thanks for verifying my sanity (on this subject, anyway). I just found it hard to believe that this mistake could be made by Fender, and that I couldn't find the topic in my search.

Thanks again.

[Cliff Schecht]

Did you say Fender make a mistake? You mean like factory wiring errors or faulty solder joints? Never once until those pesky guys over at CBS bought 'em out!

[martin manning]

There was apparently some confusion at Fender with regard to the schematic symbol in early '55. These are selenium rectifiers, in Fender's earliest fixed-bias amps... New technology for them, I guess. The layouts always seem to show them wired correctly, though.