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The Singing Bush
The Singing Bush
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Old 7th February 2020, 11:16 PM   #51
Zen Mod is offline Zen Mod  Serbia
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The Singing Bush
Default second ....

some graphs of Uberfunny SIssySIT
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File Type: png SissySIT 1W 8R.png (67.3 KB, 807 views)
File Type: png SissySIT 10W 8R.png (66.3 KB, 798 views)
File Type: png SissySIT 10.5W 8R.png (80.1 KB, 794 views)
File Type: png SissySIT 18W 8R.png (79.3 KB, 795 views)
File Type: png SissySIT Freq. response 1W 8R.png (58.0 KB, 794 views)
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Old 8th February 2020, 12:30 AM   #52
wengtech is offline wengtech
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is 2sk180 out of radar?
why not test 2sk180 with this singing bush pcb?
specification quite similar to 2sk77b
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Old 8th February 2020, 01:03 AM   #53
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sorry , don't have any

as far as I know , mein Bruder Generg have at least one , but I don't know is he in the mood for soldering fumes and twiddling the knobs

new Herzklappen , that can change priorities

so , if anyone is willing to send me a pair of these , I'll test them to death ( well , not literally )

though ...... I'm not so sure how I'm gonna send them back .......
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Last edited by Zen Mod; 8th February 2020 at 01:05 AM.
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Old 8th February 2020, 01:12 AM   #54
flocchini is offline flocchini  United States
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Quote:
Originally Posted by Zen Mod View Post
All roads are leading to Rome


I better get my sneakers on
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Old 8th February 2020, 01:14 AM   #55
Zen Mod is offline Zen Mod  Serbia
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The Singing Bush
You're good to go ......

.... having Mithrandir in your Yard

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Old 8th February 2020, 01:20 AM   #56
flocchini is offline flocchini  United States
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so true !!!!
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Old 8th February 2020, 06:39 AM   #57
Zen Mod is offline Zen Mod  Serbia
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The Singing Bush
Default if you still aren't bored ....... third

and also this one ,for comparison sake, my fave small toob SE, EAR859 (declared as 12-13W)

ignore graph weed
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File Type: png 1W.png (78.9 KB, 169 views)
File Type: png 5W.png (75.3 KB, 171 views)
File Type: png 10W.png (81.3 KB, 140 views)
File Type: png 12.25W.png (19.8 KB, 134 views)
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Old 8th February 2020, 01:44 PM   #58
flocchini is offline flocchini  United States
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ZM

you are on a roll !!!!
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Old 8th February 2020, 02:06 PM   #59
Zen Mod is offline Zen Mod  Serbia
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Schade test later today

almost soldered Edcor 600:15K on pcb , then realized it's not repeater coil .....

luckily , to keep things in line (plenty of other repeaters , but keep it Kosher, by schm) I have Jensens with wire connections , Bruder Generg sent me few years ago , with some other Goodies
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Last edited by Zen Mod; 8th February 2020 at 02:10 PM.
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Old 8th February 2020, 02:50 PM   #60
jjasniew is offline jjasniew  United States
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Interested in the parallel jfets at the input. I recall seeing this in a phono preamp design, but have never grasped the theory behind the multiple parallel devices. How does it work?
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