- Dumont 1062 scope - 3 Updates
- Bugs in the machine. - 5 Updates
Jon Elson <elson@pico-systems.com>: Jan 05 10:39PM -0600 > Anyway I was playing with it over the holidays and it seems to be reading > vertically on the screen instead of horizontally like a normal scope. > Anyone ever heard of or seen that before? Any ideas? Possibly somebody swapped the wires on the deflection plates. Usually there are 4 wires poking out through holes in the CRT magnetic shield, with wires to the deflection amps. You could try swapping the pairs of wires. Jon |
"Tom Miller" <tmiller11147@verizon.net>: Jan 05 11:33PM -0500 <fordfanatic460@hotmail.com> wrote in message news:2de819e8-abce-434b-ad1e-9c97b1ddb88d@googlegroups.com... > Anyway I was playing with it over the holidays and it seems to be reading > vertically on the screen instead of horizontally like a normal scope. > Anyone ever heard of or seen that before? Any ideas? There's a manual on ebay for pretty cheap. http://www.ebay.com/itm/Cathode-Ray-Oscilloscope-Du-Mont-Type-2559A-748-1047-Instruction-Book-1957-/161667404698?hash=item25a420d39a:g:HcoAAOSwBLlVJzTd This is a late 1950's scope so most that ever used one have forgotten about them. |
Michael Black <et472@ncf.ca>: Jan 06 02:31AM -0500 |
John Robertson <spam@flippers.com>: Jan 06 09:40AM -0800 On 01/06/2016 8:32 AM, N_Cook wrote: > I've twice previously come across bug cocoon/web actually inside the > space under the lens of CD units ,in the laser firing line, as the fault > cause. The vapours from that may condense on the lens...so it probably isn't a good idea. I had a similar problem with cockroaches getting into our printers - make quite a mess! I ended up just putting sticky roach traps all around the machines until the landlord got the bug problem under control. Haven't seen a roach in years though. John :-#)# -- (Please post followups or tech inquiries to the USENET newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
Kaz Kylheku <kaz@kylheku.com>: Jan 06 07:08PM > Would a bit of napthalene mothball keep spiders and other small creepy > crawlers out of the warmth of an always-on, so warm, bit of kit, or any > better ideas to keep bugs out of there. Napthalene smells like shit and is a poor insecticide. It's used in closed spaces where the concentration of the vapors builds up. I'd spray some permethrin-based insecticide in the vicinity, and maybe even inside the unit. The stuff is available in the form of bug spray which contains only around 0.25% of the stuff. It leaves no visible trace and the sprayed areas stay effective for weeks to months. |
N_Cook <diverse@tcp.co.uk>: Jan 06 07:28PM On 06/01/2016 19:08, Kaz Kylheku wrote: > The stuff is available in the form of bug spray which contains only > around 0.25% of the stuff. It leaves no visible trace and the sprayed > areas stay effective for weeks to months. I see DEET affects plastics and lemon eucalyptus oil as well as DEET has only short term efficafacy. So something lasting years looks unlikely. Perhaps advise the owner to squirt permethrin aerosol in the vent slots in a marked safe placeevery couple of months . |
dplatt@coop.radagast.org (Dave Platt): Jan 06 12:21PM -0800 In article <20160106110251.859@kylheku.com>, >> better ideas to keep bugs out of there. >Napthalene smells like shit and is a poor insecticide. It's used >in closed spaces where the concentration of the vapors builds up. And, both acute and chronic exposure to it can do Bad Things to the body. >The stuff is available in the form of bug spray which contains only >around 0.25% of the stuff. It leaves no visible trace and the sprayed >areas stay effective for weeks to months. Spraying the inside of the case might be sufficient. |
N_Cook <diverse@tcp.co.uk>: Jan 06 04:32PM Would a bit of napthalene mothball keep spiders and other small creepy crawlers out of the warmth of an always-on, so warm, bit of kit, or any better ideas to keep bugs out of there. Bose AWRC3G CD radio clock, started non playing of the odd CD then all CDs failed to play. Cleaning the lens, no difference, "Disc" in display, the same as with no disc in there. The whole unit was so full of fine spider web/cocoon silk? that you could not see the components of the PA/PS area. Odd bits of insect stuff around the optical unit. Removed the laser and lens unit from the sledgeway and air dusted under the lens area. Blew out the PA/PS area with 1kW blower. Now playing all CDs thrown at it, cured? I've twice previously come across bug cocoon/web actually inside the space under the lens of CD units ,in the laser firing line, as the fault cause. |
You received this digest because you're subscribed to updates for this group. You can change your settings on the group membership page. To unsubscribe from this group and stop receiving emails from it send an email to sci.electronics.repair+unsubscribe@googlegroups.com. |
No Response to "Digest for sci.electronics.repair@googlegroups.com - 8 updates in 2 topics"
Post a Comment