FS Parts: Refurbished A/R-II BLOWOUT sale - $39/1, $69/2, $99/3, SHIPPED w WARRANTY

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andrewb

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Refurbished A/R-II BLOWOUT sale - $39/1, $69/2, $99/3, SHIPPED w WARRANTY

I have accumulated way too many A/R-II's, so it's sale time.

These are in fine working order, and have been fully repaired and tested by me (voltage and audio) in my personal machines.

They have not been fully recapped, but all caps have been tested with an ESR meter and verified good. I rarely find bad caps on A/R-II's in my experience, and run original caps in all of my games with no problems. Atari used good quality caps on these, and to replace them with equivalent quality caps today is relatively pricey, so IMO it's better to keep the original Nichicon caps, than replace them with something potentially inferior.

Some of the units are in excellent physical condition (almost like new), while others may have minor cosmetic damage, which does not impact performance (mostly in the form of small burn marks from failed R29's and R30's, which have since been replaced). I can't post pics of each one as I have too many, but I won't send you crap.


All units have had the following done:

- Full cleaning (wash and dry).
- Replacement of any failed or out-of-spec components.
- ESR and capacitance testing of all caps.
- Full load testing and burn-in, in my personal machines.


I have many of all major types available (A/R-II-01, -02, -04, -05, and -06). If you are not sure which one your machine requires, see the link below. If you have any questions about compatibility, just PM me, as there are a lot of options, if I happen to run out of the type you need.

http://www.elektronforge.com/AudioRegs.htm


Notes on the ElektronForge list:

- Tempest is listed as an -02, but the +12V and -5V (present on the -02) do not even connect to the harness, so there is really no point in using an -02, and thus the -04 is really the proper type.

- The above is also true for Millipede (which ElektronForge does not state). Centipede however does require +12V and -5V, so a -02 is the correct one for Centipede.

- Asteroids and Asteroids Deluxe use A/R-I's, but two different types (-01 for Asteroids, and -03 for Deluxe). However, an A/R-II-01 is functionally the same as an A/R-I-03, except it is the size of an A/R-II, but has the entire right side unpopulated. (So you could theoretically cut off the right side of the PCB, and it would be the size of an A/R-I.) So it is possible to use an A/R-II-01 in an AD.

- You can also use an A/R-II-01 in an Asteroids, however it is necessary to change the audio caps from 3300uF to 1000uF. Also, the speaker connector is different, but you can remove the pins from the Ast harness connector (which is 4 pins in-line), and insert them directly into the A/R-II-01 connector (which is a square 4-pin connector).


Other notes:

- I do have a few A/R-I's available for the same prices, but contact me about those, as I only have a few.

- All boards are warrantied for 3 months. You pay to ship it back, and I will repair and return for free.

- Prices are $39 shipped for one board, any two for $69 shipped, and any three for $99 shipped.

- I will ship internationally, but shipping will be more. PM for a quote.


Thanks!
Andy
 
Thanks for pointing out many of the nuances of the AR boards. I was considering making an all encompassing list one of these days and sharing it here on the forums. I found nothing wrong in any of your statements which should be helpful to those needing AR board substitution. I didn't realize an ARII-4 would work in Tempest but never really bothered to look. I think it important to note that ARII-03 boards are a must for Missile Command, otherwise the sounds are all wrong. Finally, I Have never seen an ARII-05 having owned hundreds of these power supplies. (Still have about a hundred different version stored in boxes). Do you have an ARII-05? If so, could you please provide a photo? What games used that version?

Free bump for good info.

Pat
HD
 
That's interesting about the -03. From what I'd read, I found there was mixed info on that. I found several posts where people said they had tried -02's and had no problem. I also have a friend with a MC cabaret, who is running a -02 no problem. (Note that I'm not discounting if you have observed the opposite to be the case.)

I wonder if there are variations of the PCB where it can matter. I wouldn't be surprised. The only difference with the -03 is that it has a 15 ohm 5W current limiting resistor on the -5V supply, versus the 22 ohm 10W on the -02's. Presumably something on the MC draws additional -5V, but I've never tried to figure it out. It would be interesting to measure, and see what the draws are on typical boards, and how close they are to the limits.

(On a related note, I just noticed as I was looking through various schematics that the Battlezone schematics package (DP-156, 2nd printing) shows a 15 ohm 5W resistor in the AR diagram. This would suggest a -03, but it could also just be a copy/paste error on Atari's part, as the general consensus is that BZ used an -02. I've really got to measure this now...)

As for the -05, I think I actually do have one, but I agree they are uncommon. I'll dig it out later and post pics.

AR geek talk is fun. :)
 
Hey Alan,

Not that I'm willing to part with. ;)

I just got a tube, to complete my first 19" Amplifone project, which I've been collecting parts for for about a year. Looking forward to putting it together and joining that club.

The deflection boards have been popping up on ebay as of late. The HV boards are less common though. Have you considered dezbaz's repros?

http://www.amazingarcading.com.au/
 
That's interesting about the -03. From what I'd read, I found there was mixed info on that. I found several posts where people said they had tried -02's and had no problem. I also have a friend with a MC cabaret, who is running a -02 no problem. (Note that I'm not discounting if you have observed the opposite to be the case.)

I wonder if there are variations of the PCB where it can matter. I wouldn't be surprised. The only difference with the -03 is that it has a 15 ohm 5W current limiting resistor on the -5V supply, versus the 22 ohm 10W on the -02's. Presumably something on the MC draws additional -5V, but I've never tried to figure it out. It would be interesting to measure, and see what the draws are on typical boards, and how close they are to the limits.

(On a related note, I just noticed as I was looking through various schematics that the Battlezone schematics package (DP-156, 2nd printing) shows a 15 ohm 5W resistor in the AR diagram. This would suggest a -03, but it could also just be a copy/paste error on Atari's part, as the general consensus is that BZ used an -02. I've really got to measure this now...)

As for the -05, I think I actually do have one, but I agree they are uncommon. I'll dig it out later and post pics.

AR geek talk is fun. :)
Do you by chance have an ARII-03? I am running an ARII-02 in my missile command, but noticed the explosions do appear to be a bit "off". I have been wanting to get my hands on an -03 to test it out and see if there is a difference.
 
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