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Novar Spud :: A 0 sweep tube Spud with PCB
Novar Spud :: A 0 sweep tube Spud with PCB
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Old 29th November 2017, 10:48 PM   #161
smoking-amp is offline smoking-amp  United States
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Here is another little trick.

I put Novar pc mount sockets on Pete Millett's 9 pin Noval prototyping boards. Then I made the Noval sockets it came with (specify un-attached) into an adapter using 40 mil Keystone 1405- 1/2/3 pins (Mouser has these). Now it works for Noval or Novar, and it provides convenient scope probe clip-on contacts for Noval tubes:

Since Novar fits too, I may make some Novar to Novar socket adapters also using the 40 mil pins (just like the Noval adapter shown), then I'll have convenient scope probe clip-ons for Novar too.
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File Type: jpg rsz_novar_noval_proto.jpg (324.6 KB, 96 views)
File Type: jpg rsz_novar_noval_test.jpg (202.6 KB, 89 views)
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Old 30th November 2017, 05:28 AM   #162
tomchr is offline tomchr  Canada
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That's a pretty neat trick.
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Modulus-86: 40W/8Ω @ 0.000061% THD. HP-1: 3W/20Ω, 450mW/300Ω @ 0.000032% THD. DG300B and Other Tube Circuits.
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Old 30th November 2017, 05:42 PM   #163
smoking-amp is offline smoking-amp  United States
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OT: More little tricks

I used Octal Wafer plugs ( Ebay) to make adapters for 7 pin B7G and 8 pin sub-mini tubes. I used a 7 pin PC tube socket, and an old Augat 8 pin Teflon round IC socket for each. The 7 pin PC sockets fit perfectly into the Octal Wafer pins. The Augat IC socket required wire spreaders to fit the Octal Wafer pins. The gray Octal relay sockets make for cheap wired prototyping bases. I also put some looped copper wire scope clip-on contacts around the sockets.
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File Type: jpg rsz_octal_adapters.jpg (206.7 KB, 65 views)
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Last edited by smoking-amp; 30th November 2017 at 05:55 PM.
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Old 1st December 2017, 05:30 AM   #164
tomchr is offline tomchr  Canada
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I generally use a piece of scrap PCB with some tube socket mounting holes and turret strips for prototyping. It's not pretty but it does the job until I lay out a PCB.

Tom
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Modulus-86: 40W/8Ω @ 0.000061% THD. HP-1: 3W/20Ω, 450mW/300Ω @ 0.000032% THD. DG300B and Other Tube Circuits.
Neurochrome : : Audio - www.neurochrome.com - Engineering : : Done : : Right
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