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"WHAMMY" Pass DIY headphone amp guide
"WHAMMY" Pass DIY headphone amp guide
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Old 12th April 2018, 07:20 PM   #41
heijnsva is offline heijnsva  Netherlands
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Definitely interesting and exciting project!
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Old 13th April 2018, 01:24 AM   #42
Jason is online now Jason  Australia
:)
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"WHAMMY" Pass DIY headphone amp guide
The WHAMMY headphone amplifier PCBs are now available in the store:

Whammy Headphone Amp PCB – diyAudio Store
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Old 13th April 2018, 04:56 AM   #43
mbedwani is offline mbedwani  Australia
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Just ordered the PCB - \o/
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Old 13th April 2018, 08:58 AM   #44
Mobes123 is offline Mobes123  Scotland
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Hi Dennis,

thanks for pointing me to the gerbers!

cheers!
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Old 13th April 2018, 08:58 PM   #45
HiGHFLYiN9s is offline HiGHFLYiN9s  United States
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Woot!

Any suggestions for a part # for the snubber? Looks like 22LS.
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Old 15th April 2018, 11:29 AM   #46
ikek is offline ikek
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I cannot seem to find the dimensions of the pcb either in this thread, in the "new PassDIY Heaphones" nor is it listed in the diyaudio store. Does anyone have the dimensions and are willing to share?

And last, how high does the stuffed amplifier board build in height in mm, will e.g. an enclosure with 40mm internal height be sufficient?

with regards,
ikek
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Old 15th April 2018, 01:30 PM   #47
Dennis Hui is offline Dennis Hui  Canada
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"WHAMMY" Pass DIY headphone amp guide
Hi Ikek,

I got my boards from Wayne last year (looks to be the same as the one in 6L6's
picture on page 1 of this thread) and they measure about 160mm x 218mm.

40mm clearance is pretty tight and you need to check your part heights. (The
total clearance of the Hammond case mentioned earlier is about 47mm.)

Cheers,
Dennis
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Old 15th April 2018, 01:40 PM   #48
ikek is offline ikek
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Thank you!

I am waiting on my board and was looking at enclosures. Easy to find a type I think I like but hard to know what would fit when dimensions are not, to my knowledge, easily available.

I found it puzzling that the dimensions are not mentioned at the diyaudio store page for this product.

with regards,
ikek
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Old 16th April 2018, 07:31 PM   #49
HiGHFLYiN9s is offline HiGHFLYiN9s  United States
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Quote:
Originally Posted by HiGHFLYiN9s View Post
Any suggestions for a part # for the snubber? Looks like 22LS.
After some digging I found one that looks good. LS is 22.5 vs 22 but should work. Mouser - 594-2222-336-10224 X1 rated.

6J6 I saw you used 35v Nichicon FGs for C3, C4, C9 and C28. Assuming 50V parts are for additional headroom/longevity but not mandatory? I'd like to try to shoehorn some Silmics in there. Also, what is the value of the orange capacitor referencing safety earth and signal ground. TIA!!
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Last edited by HiGHFLYiN9s; 16th April 2018 at 07:34 PM.
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Old 16th April 2018, 07:34 PM   #50
6L6 is offline 6L6  United States
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"WHAMMY" Pass DIY headphone amp guide
I like the Nichicon caps mostly because they say "Audio Grade" on the datasheet -

I figure if some group of engineers much smarter than me is trying to keep the capacitor's response well-behaved in the AF range, then who am I to argue? Might as well use them. And they look cool.

Yes, the Lead spacing on the snubber is 22mm

Last edited by 6L6; 16th April 2018 at 07:37 PM.
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