Starving Student PCB's
May 24, 2013 at 6:23 AM Post #17 of 392
Quote:
Great job. I like how compact the board is, yet leaves enough space between the components for upgrades. 

Thanks its been very reliable and stable, I just got over using toner transfer to make it :)
 
I used it to make this a while ago
 


 

 
Still gets an airing every now and then
 
 
cheers
FRED
 
May 24, 2013 at 2:26 PM Post #18 of 392
Hi Fred, 
 
Do you have any more starving student pcb available? I am really interested in buying you a couple of them. 
 
I will wait for you. 
 
Thanks a lot
 
Mike
 
May 24, 2013 at 4:29 PM Post #19 of 392
Would it be hard to convert this board from the 12AU7 to 6922 type or the PCC 189 or anything equivalent. 
Should I look at the values? I think the 12AU7 is a bit similar but with different values if i'm not mistaken.
 
May 24, 2013 at 5:59 PM Post #20 of 392
May 24, 2013 at 6:09 PM Post #21 of 392
Quote:
Would it be hard to convert this board from the 12AU7 to 6922 type or the PCC 189 or anything equivalent. 
Should I look at the values? I think the 12AU7 is a bit similar but with different values if i'm not mistaken.

On a 12AU7 pins  4 and 5 are the the 12.6 volt heater with pin 9 as the centre tape for 6.3v operation

On a 6922 pins 4 and 5 are the 6.3v heaters with pin 9 as the shield
 
so it would need some mucking about :)
 
cheers
 
May 27, 2013 at 6:21 PM Post #23 of 392
I'm guessing you mean C2 and C4 and yes it would work but the lead spaving is 15mm so you'd need to do some lead bending to make it fit
 
cheers
FRED
 
Jun 6, 2013 at 5:52 PM Post #25 of 392
Jun 15, 2013 at 6:36 PM Post #30 of 392

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