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km987654
Joined: 25 Jul 2007
Posts: 1589
Location: Australia
TV/Projector: Barco BG808s 9
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 Link Posted: Fri Aug 29, 2008 9:03 am Post subject: Testing with Sencore |
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Is the sencore cr70 good for testing and repairing tubes in projectors. Specifically is it good for testing Sony SD146A tubes. I want some way of testing tubes before installing tubes in my Projector.
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Heywood Jablome
Joined: 12 Mar 2006
Posts: 1542
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| Link Posted: Mon Sep 01, 2008 4:31 am Post subject: |
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Its excellent for testing... The tubes we're interested in generally require the universal adapter (clip leads.)
SD-146A CRT Pinout
F1 F2 Color K G1 G2
7 8 Red 10 5 9
Ignore the 'red' it's just the default reporting in the website database.
Here's the setup:
Showing Page 1 of 1
CRT Socket Type Filament Bias Direct Heat
SD-146A UA Proj 6.3 52V No
_________________
"Those countries which lag behind in industry, in the application of mechanics and technical chemistry, in the careful selection and utilization of natural products, where the respect for such activities does not permeate all classes of society, will unfailingly decline in prosperity. They will sink faster when neighbor states, with an energetic exchange between science and industry, go forward with renewed vitality."
-- Baron Alexander von Humboldt: 1769-1859
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Heywood Jablome
Joined: 12 Mar 2006
Posts: 1542
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| Link Posted: Mon Sep 01, 2008 3:54 pm Post subject: |
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Oh, and make sure to set up the CR-70 for the universal adapter... the setup knobs are set to 1,2,3,4,5,6 for the UA. Check the setup book to be sure.
_________________
"Those countries which lag behind in industry, in the application of mechanics and technical chemistry, in the careful selection and utilization of natural products, where the respect for such activities does not permeate all classes of society, will unfailingly decline in prosperity. They will sink faster when neighbor states, with an energetic exchange between science and industry, go forward with renewed vitality."
-- Baron Alexander von Humboldt: 1769-1859
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km987654
Joined: 25 Jul 2007
Posts: 1589
Location: Australia
TV/Projector: Barco BG808s 9
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| Link Posted: Mon Sep 01, 2008 10:04 pm Post subject: |
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I just have to find a cr70 at a reasonable price.
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Heywood Jablome
Joined: 12 Mar 2006
Posts: 1542
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| Link Posted: Tue Sep 02, 2008 1:09 pm Post subject: |
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I have access to one which will go cheap, with the UA and all the sockets, but the connector is damaged and will have to be repaired. I would be happy to pack it and ship it for actual cost, if the Customs stuff promises to be not too much of a PITA.
_________________
"Those countries which lag behind in industry, in the application of mechanics and technical chemistry, in the careful selection and utilization of natural products, where the respect for such activities does not permeate all classes of society, will unfailingly decline in prosperity. They will sink faster when neighbor states, with an energetic exchange between science and industry, go forward with renewed vitality."
-- Baron Alexander von Humboldt: 1769-1859
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Heywood Jablome
Joined: 12 Mar 2006
Posts: 1542
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| Link Posted: Sat Oct 04, 2008 5:40 pm Post subject: |
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Resurrecting this old thread...
The Sencore documentation appeares to be wrong for this tube... I just had eyes on a few in the garage of Chip (stefuel here) and it appears that pin 8 on the SD146A is not connected to anything... 6,7 appear to be the heater.
_________________
"Those countries which lag behind in industry, in the application of mechanics and technical chemistry, in the careful selection and utilization of natural products, where the respect for such activities does not permeate all classes of society, will unfailingly decline in prosperity. They will sink faster when neighbor states, with an energetic exchange between science and industry, go forward with renewed vitality."
-- Baron Alexander von Humboldt: 1769-1859
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tse
Joined: 03 May 2006
Posts: 1006
Location: Sweatbucket, Fl.
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| Link Posted: Sat Oct 04, 2008 6:07 pm Post subject: |
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Panasonic and Sony had different ways of numbering the tube pins. That may be the source of confusion. The attachment shows The Sony base renumbered to match the Panasonic method and the tube socket number system.
Scott
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"Were we directed from Washington when to sow and when to reap, we would soon want bread."
Thomas Jefferson
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stefuel
Joined: 07 Mar 2006
Posts: 3208
Location: Green Harbor MA USA
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| Link Posted: Sat Oct 04, 2008 7:59 pm Post subject: |
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Scott, we're talking about SD-146A (electrostatic tubes). These should be the same pin-out as SD-187 and 07MS 7" tubes.
I'm going to bring that stuff back in the house so I can mess with it sitting down at the kitchen table (the wifes gone to work) 
I'm forbidden from working on hobby stuff in the house as I've already burned the oak dining room table with a soldering iron 
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Chip
A Barco is only a AmPro with training wheels
Card carrying member of the AVS chain gang.
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Heywood Jablome
Joined: 12 Mar 2006
Posts: 1542
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| Link Posted: Sat Oct 04, 2008 8:19 pm Post subject: |
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| stefuel wrote: | Scott, we're talking about SD-146A (electrostatic tubes). These should be the same pin-out as SD-187 and 07MS 7" tubes.
I'm going to bring that stuff back in the house so I can mess with it sitting down at the kitchen table (the wifes gone to work)
I'm forbidden from working on hobby stuff in the house as I've already burned the oak dining room table with a soldering iron |
Just tell her you're marking your territory. It's either a little scorch mark on the table or pee in the corner!
_________________
"Those countries which lag behind in industry, in the application of mechanics and technical chemistry, in the careful selection and utilization of natural products, where the respect for such activities does not permeate all classes of society, will unfailingly decline in prosperity. They will sink faster when neighbor states, with an energetic exchange between science and industry, go forward with renewed vitality."
-- Baron Alexander von Humboldt: 1769-1859
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