Cute Little Tube Oscilloscope, Thought I'd share. - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 15th December 2012, 12:39 PM   #1
freax is offline freax  Australia
diyAudio Member
 
freax's Avatar
 
Join Date: Sep 2007
Location: NSW
Default Cute Little Tube Oscilloscope, Thought I'd share.

Meet Andrew's blast from the past (Gadget Master)

Suggestions for a substitute Deflection Tube besides the DG7-6 are welcome.

Click the image to open in full size.

Click the image to open in full size.
__________________
"It seems that perfection is reached not when there is nothing left to add, but when there is nothing left to take away" - Antoine de Saint Exupéry
  Reply With Quote
Old 15th December 2012, 12:43 PM   #2
diyAudio Member
 
Join Date: Aug 2008
I can imagine using this little thing to measure the huge SE that was presented here
  Reply With Quote
Old 15th December 2012, 12:54 PM   #3
diyAudio Member
 
Join Date: Jan 2002
Location: nowhere
Very cool! What cathode ray tube is that? Running off only 800V suddenly seems like a doable project.
  Reply With Quote
Old 15th December 2012, 01:15 PM   #4
diyAudio Member
 
Vincent77's Avatar
 
Join Date: Jan 2011
Location: Bruxelles
It would look cool used as a clock.
  Reply With Quote
Old 15th December 2012, 05:58 PM   #5
diyAudio Member
 
HollowState's Avatar
 
Join Date: Aug 2006
Location: Taxland, New Jersey
Quote:
Originally Posted by freax View Post
Suggestions for a substitute Deflection Tube besides the DG7-6 are welcome.
Based on apparent size, a 3RP1 (curved face) or a 3RP1A (flat face) should work. Or perhaps a 2BP1 or even a 2AP1. (different bases) Also a Brimar D7/200GH which is a squared off shape of about 2½ inches diagonally. These are all electrostatic deflection tubes that like about 1KV on their second anode. The 3RP1/A are popular in small Heathkit scopes, ham radio signal monitors and Cushman service monitors. The Brimar was also used in old service monitors.
__________________
"It is hard to imagine a more stupid or more dangerous way of making decisions than by putting those decisions in the hands of people who pay no price for being wrong." ~Thomas Sowell
  Reply With Quote
Old 15th December 2012, 06:09 PM   #6
Mooly is offline Mooly  United Kingdom
diyAudio Moderator
 
Mooly's Avatar
 
Join Date: Sep 2007
My first scope was a diy affair. The Practical Wireless "Purbeck" using the 3BP1 running at 800 volts. It was a 6Mhz design, quite an ambitious project for a then youngster. I used the official case and etched all the boards myself.

PRACTICAL WIRELESS - 'PURBECK' OSCILLOSCOPE - APRIL 1978 | eBay

It gave me many 100's probably 1000's hours reliable service and started me off on a career in electronics.
__________________
-------------------------------------------------------
A simulation free zone. Design it, build it, test it.
  Reply With Quote
Old 16th December 2012, 08:34 AM   #7
Merlinb is offline Merlinb  United Kingdom
diyAudio Member
 
Merlinb's Avatar
 
Join Date: May 2006
Location: Lancashire
That's so cool!
  Reply With Quote
Old 16th December 2012, 09:37 AM   #8
Cookj is offline Cookj  Belgium
diyAudio Member
 
Join Date: Aug 2004
Location: Bruxelles
He has another one on his home page ;-

Binocular CRO

John
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Thought I'd share this - cardboard U-frame. chris661 Full Range 12 18th November 2009 01:13 AM
Does anyone have 6BQ6 (sweep tube) triode plate curves to share? DualTriode Tubes / Valves 12 15th October 2009 06:18 AM
Thought I'd share a cool project flaevor Multi-Way 12 13th June 2005 08:45 PM
Thought I would share some good deals. tupacglock Subwoofers 0 30th May 2005 08:05 AM


New To Site? Need Help?

All times are GMT. The time now is 03:21 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2