Post pics of your builds.... - Page 281 - Head-Fi: Covering Headphones, Earphones and Portable Audio

Pars · 12-24-2007, 11:43 PM

I built a Dynalo for my brother for Christmas and just finished casing it up today, so thought I'd share some pics. I used the board from my work Dynalo (cigar box, posted previously) and put a new board in it that I built up with Roderstein/PRP resistors, Pana FM and Elna Cerafines, etc. I used some Mill-Max flush socket pins to socket all transistors and FETs also.

Here's my new board:

And here is the amp for my brother:

Hope he likes it!

el_matt0 · 12-25-2007, 12:33 AM

@ pars, it might just be my internet messing around, but none of those picture links are working.

Pars · 12-25-2007, 01:59 AM

No, probably comcast... someone told me they could see them as http instead of https, so I tried that. Apparently not...

https://home.comcast.net/~youngc1/My_dyna.JPG

https://home.comcast.net/~youngc1/My_dyna2.JPG

And here is the amp for my brother:

https://home.comcast.net/~youngc1/Fr_dyna_lit.JPG

https://home.comcast.net/~youngc1/Inside_rear_dyna.JPG

https://home.comcast.net/~youngc1/Rear_dyna.JPG

Pars · 12-25-2007, 02:09 AM

double post

dBel84 · 12-25-2007, 02:17 AM

I think your brother is very fortunate to have you as a brother.

pics work fine for me. A merry Christmas to all who celebrate..dB

jbloudg20 · 12-25-2007, 03:53 AM

Originally Posted by GeWa

Glowing-Tube, are you willing to share the schematics of your 6AS7G amp.
I have a few of those tubes lying around for ages, maybe its time I can put them to use.

Best regards

Do not fret, that amp is a design that has been around for AGES.

See the VanWaarde Article on headwize. All you need to know, is to drop the cathoderesistor on the output stage in half, and parallel the output tube sections. Nice and easy, and nothing new that needs to be hidden.

bhjazz · 12-25-2007, 07:08 AM

Originally Posted by dBel84

I think your brother is very fortunate to have you as a brother.

Much agreed! X2.

And I see a nice panavise in the pics as well. I have one under the tree (no I didn't snoop. I bought it and handed it to my wife!)

Nice work pars!

stixx · 12-25-2007, 01:06 PM

Do not fret, that amp is a design that has been around for AGES.

True...
There also was the Wheatfield HA-2 (Pete Millet) a few years back that used a similar schematic (but with much higher B+), then there is a version with paralleled halves from megahertzaudio in Italy, and I think the current offerings by wooaudio and darkvoice might be based on something similar as well...

vixr · 12-27-2007, 08:39 PM

very clean work pars... awesome

naamanf · 12-28-2007, 11:11 AM

Here is my latest build...

Pretty much a standard Blue Hawaii. It uses a pair of Twisted Pear Joshua Trees for volume control. Built the entire thing on my little desk here in Iraq. Makes me really appreciate a big work bench. I plan on doing some nice curly Koa accent pieces when I get home along with putting a nice high gloss black finish on the case.