Smaller Dipthonizer

[dbharris]

Ok awesome, I need to remember to grab some of those LT1054s on my next order.

[dbharris]

Hey Brian,

I know you've been super busy lately.  I was wondering if there was any progress on this project?  Even an official BOM for your board would be awesome.  I'm waiting on placing a small bear order for whatever I need but don't have for a dipthonizer and a forumvibe.

Thanks!

Dan

[madbean]

Actually, the prototype has been built, but there is a problem with it. I have not had time to track it down yet. I only finished it a couple of days ago and I'm in the process of reviewing my schematic re-draw to check for errors.

I can post the BOM here tomorrow.

[dbharris]

OK thanks so much!  Sorry to hear you had some problems with the prototype.  Juansolo mentioned in the OP and I've also heard a few guys on BYOC say that the original layout has some errors.  That's why I stayed away from building this at first.  So if the schemo looks correct maybe looking at the thread on BYOC will help a little.  Good luck!

[juansolo]

OK thanks so much!  Sorry to hear you had some problems with the prototype.  Juansolo mentioned in the OP and I've also heard a few guys on BYOC say that the original layout has some errors.  That's why I stayed away from building this at first.  So if the schemo looks correct maybe looking at the thread on BYOC will help a little.  Good luck!

With mine there was a ground that wasn't connected where it should have been, and it needed a link on one of the board mounted sockets as the ones I sourced were the opposite way around to the ones the board was done for. Otherwise it was pretty much as the layout on the thread.

The biggest problems after that were making it fit in the enclosure with the through board pots (which were a little short, I'd do it different next time) and the fact that the sockets and 4 pos switch are backwards if you do it that way.

[madbean]

R1   100k
R2   2M7
R3   27k
R4   100k
R5   180k
R6   4k7
R7   1k
R8   3k9
R9   100k
R10   1k
R11   3k9
R12   33k
R13   47k
R14   2M7
R15   2M7
R16   10k
R17   4k7
R18   2k2
R19   1k
R20   220k
R21   1k
R22   100k
R23   1M
R24   1M
R25   2M2
R26   1M
R27   270k
R28   1M
R29   470k
R30   1M
R31   10k
R32   100k
R33   100k
R34   220k
R35   100k
R36   27k
R37   47k
R38   220k
R39   3k3
R40   3k3
R41   3k3
R42   1M
R43   22k

C1   10n
C2   200pF - 2n2
C3   2u2
C4   100n
C5   4n7
C6   4n7
C7   1n5
C8   1n5
C9   100n
C10   2u2
C11   2u2
C12   470n
C13   220n
C14   100n
C15   47n
C16   100n
C17   100uF
C18   47uF

D1 - D11   1N4148
D12, D13   5v1 Zener
   
IC1, IC5   LM324N
IC2, IC3   3080E
IC4   4558N
   
SW    4P2-3T
   
FUZZ   10kB
SWEEP   10kB

[dbharris]

Thanks Brian!

[juansolo]

If anyone needs a UK source of genuine 3080Es, I got mine from Bowood Electronic. Comes in at £5.50 for two inc delivery.