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PostPosted: Fri Nov 11, 2011 9:01 am
by EWBrown
Pins 1 and 8 can be jumpered together for V2 and V3, this would make the PC board compatible with EL34s / 6CA7s and some other more "modern" BPTs.

On the old style metal shell 6L6s (and 6V6s) , the shell is connected to pin 1, with the glass tubes, pin 1 not used.

/ed B

PostPosted: Fri Nov 11, 2011 11:56 am
by Shannon Parks
badassbob wrote:Hey Shannon, what is the "hole pattern" on this board? Id love to do an FPE file for it ;)


I knew I was forgetting something! I will post it later today - I promise.

Shannon

Clementine Hole X,Y in Mils

PostPosted: Fri Nov 11, 2011 9:21 pm
by Shannon Parks
Clementine Hole X,Y in Mils

Mounts
200,200
200,2800
7800,200
7800,2800
2600,1300
5400,1300

Tubes
1000,1300
4000,1300
7000,1300

PostPosted: Sat Nov 12, 2011 8:37 am
by badassbob
Thanks Shannon! I should have this up sometime today.

PostPosted: Sun Nov 13, 2011 4:57 pm
by badassbob
The FPE file for the Clementine is finished. Check your email Shannon, let me know what you think. The IEC jack behind the PT is the one thats sold at Parts Express. The switch is the same used on the GSG, as well as the fuse holder. Theyre all in a row behind the PT. The OPT holes are for the Edcor GXSE series, and the PT holes are your standard PA774.

PostPosted: Mon Nov 14, 2011 7:50 am
by Shannon Parks
Looks great, Bob! I just printed out a 1:1 and the Clementine fits perfectly. I've upped the file here:
http://www.diytube.com/clementine/clementine.fpd

Shannon

PostPosted: Mon Dec 26, 2011 5:43 pm
by rparsh
Hello, I recently ordered the PCB and the BOM from Mouser for the Clementine amp. The Mouser order came in three days but sofar no PCB. I came across the comments on the coupling cap voltage and I will use some of my K40Y9 Russian PIO caps. They are rated 400v and so are the ones in my KT88 Oddblocks. I can see no danger here. The 2 Orange Dip film caps that came in the Mouser order are 600 volt and are really large in diameter--over one inch in diameter. I`ll save them for my KT 120 Oddblock power supply. Robert Parsh :))

PostPosted: Tue Dec 27, 2011 6:30 am
by Shannon Parks
Sounds cool, Robert! Those Russian caps are pretty special. I did ship out the Clementine last week, so it will probably arrive today. I think the USPS was quite overloaded due to Christmas.

Shannon

PostPosted: Tue Dec 27, 2011 7:46 pm
by rparsh
It came today,thanks Robert Parsh

Re: diy*tube clementine project (updated 4/25/13)

PostPosted: Mon Dec 15, 2014 2:28 pm
by jnm_diyer
Out of curiosity, has anyone ever thought of using an HY69 as the output tube in this circuit? One would have to supply 6 volts DC to the filament and alter the biasing since there is no cathode in that DHP.

Admittedly, the modification is beyond my current technical capability. However, if anyone can point me to a resource to accomplish such a feat, I would be interested in giving that circuit a try.

I am thinking if it would not be feasible to use the 1625.

Re: diy*tube clementine project (updated 4/25/13)

PostPosted: Tue Dec 16, 2014 12:36 pm
by Shannon Parks
jnm_diyer wrote:Out of curiosity, has anyone ever thought of using an HY69 as the output tube in this circuit? One would have to supply 6 volts DC to the filament and alter the biasing since there is no cathode in that DHP.

Admittedly, the modification is beyond my current technical capability. However, if anyone can point me to a resource to accomplish such a feat, I would be interested in giving that circuit a try.

I am thinking if it would not be feasible to use the 1625.


I think it was a directly heated pentode intended for battery powered devices. So you'd have to use a whole new filament supply to keep the hum down. Probably much easier to use a 807 or 1625. The only prob with the 1625s was the lack of sockets, but now they're are plentiful of new ceramic ones from China on eBay.

Shannon

Re: diy*tube clementine project (3/16/16 - back in stock!)

PostPosted: Tue Oct 04, 2016 3:20 pm
by pete42
can kt88s be used in this board with no mods?
thanks

I think probably no.

Re: diy*tube clementine project (discontinued)

PostPosted: Sat Mar 13, 2021 12:29 pm
by jukingeo
Discontinued?!?!

Wow! I am out of the tube audio hobby for a few years and come back to find this amazing board is no longer available. Does someone else have something similar?