Search results for query: *

Can anyone point me to or provide a clean, legible scan of this monitor's schematic? I have an original document, though the mimeograph is difficult to read in parts. Hoping to render a useable document, but can't find an existing (clean) scan online.

Atari Operator's Handbook, the earlier and previously unavailable Kurz Kasch text is now available on Internet Archive. This scan includes high resolution pages, featuring Motorola B&W monitors, very early Atari schematics (Gotcha, QuadraPong & the like) etc. It's a fantastic resource if...

I'd like to confirm the identities for 3 transistors on my Space Invaders II power supply; which I foolishly ripped apart months ago and can no longer find my notes... Q1: ? Q3: ? Q5: ? these are TO-223 packages, affixed to heat sinks. I'd like to know which part number is found at each...

I’m rebuilding my linear supply in my Defender upright. The power PCB is getting upgraded with square headers as well. I’m curious about the wire gauge at the output from the main transformer, I don’t see the wire size described in the literature or the insulation jackets. I want to crimp...

Does anyone know the size / type of rivets which Bally used on their faceplates on their coin doors? I have drilled out and stripped my Baby Pac coin door, would like to keep it as close to original as possible by installing the same type / size of rivet once the deriding and painting is...

My unit, one owner. Lightly used, fully working in good shape. One tip only, everything in photo included. Extra filters included.

New, green blue and red I have multiples. Purple Yellow Black and Orange only have one each. $1.25 each

$1.50 each, brand new old stock

I'm in need of the housing, both halves of the shell assembly from the Upright Cabinet. Don't necessarily need the guts or ball, just the two halves of the whole assembly; part A038038-01. This is not interchangeable with the Centipede uprights or the cocktails. Solid condition with no...

Curious to know which (if any) resistors should be upgraded when rebuilding the A/R1 -03. Specifically, the schematics indicate a diode at CR1 (1N4002) and a 10ohm 1/4 W resistor at R25. My board has a diode symbol printed at R25's location on the schematic. I've installed a 10 Ω 1/2W at...

Fresh from Holland, my cabs have a long way to go before these get applied, but the finishing touch will be par-excellence!

This unit is mostly complete; however the grommet will need to be replaced as it is torn. There are reproductions available. There are no leaf switches present, otherwise all the pieces are here. Fits Dig Dug, etc. Asking $20 and no shipping charges to anyone in the US. I pack well and it...

So, game is up and running and monitor looking much better. After a few minutes of play, I notice these pixel flashing artifacts at various points in the lower 1/3rd of the video display. They're especially prevalent once the game has been running for 20 minutes or so, and particularly after a...

Original, pristine silkscreened glass. No chips, scrapes, scratches or blemishes. $60 shipped, send me a PM if interested :)

I have a question about substituting a new (modern) part on an electrohome G05 high voltage board. The B&W FAQ mentions upgrading the rectifiers BY208-600 and BY208-1000 all to 1500V rectifiers, but the parts it references appear to be obsolete (NTE558, ECG558, SK3998 which is a 1500 volt...

Not sure what is going on with my Missile Command monitor, this is a G07. Game plays blind all sounds, coins up etc. Monitor doesn't display graphics / images, but it does show a weirdly pulsing and strobing blue streak; but that's *all* it does. The blue line extends north south and shrinks...

After a long dormancy, I was able to put some quality time into my Asteroids upright. The board has always been in great shape, edge connector is good and contacts are in shiny shape. I rebuilt the AR1, installed a new TN3055 and all new caps, no problem diodes or resistors. I spent some time...

I have a 4900 with a non stock displacement connector at this location, looking to replace with original connector or find a proven replacement. The one i have now is a kludge monstrosity that looks awful and barely fits. Anyone know where to source one, or have advice on a modern swap that I...

So my Robotron began getting flakey and would halt on rug pattern at startup. I'm going to rebuild the Power Supply unit. I'm new to Williams hardware. The photo I've attached shows all the components I've removed. Are there other parts which should be upgraded? Also, what's a good solution...

Hi Gang, I'm going over a spare HV board and deflection unit in an effort to have extra working boards around for my Asteroids monitor. This is a G05-802 unit. I had re-soldered the potentiometer at R905 and it appears that one of the pot's solder points is shared (electrically) with the...