Ah that would be a significant factor there, that caps aren't harmed by sitting fully stone dead discharged for a long time, while that kills batteries of any chemistry.
On Thu, Jul 26, 2018 at 6:19 PM Andy Lawrence <[email protected]> wrote: > The generic answer to that question is yes. However, caps properly > speced/used properly will last MUCH longer, especially in a dis-charged > state. It's not uncommon for caps to still be good after 30 years. > > On Thu, Jul 26, 2018 at 6:01 PM Brian White <[email protected]> wrote: > >> Don't the caps leak eventually, the same as batteries, and so there is no >> advantage? I used nimh on all mine. >> >> On Wed, Jul 25, 2018 at 4:49 PM Andy Lawrence <[email protected]> >> wrote: >> >>> One additional note to my Supercap mod, I the cap I listed above it not >>> the correct lead spacing and was hacked in, that particular cap I had on >>> hand from another project, FYI. >>> >>> BR, >>> >>> >>> >>> On Wed, Jul 25, 2018 at 1:36 PM Andy Lawrence <[email protected]> >>> wrote: >>> >>>> Hi Greg, >>>> >>>> My wife had some #40 developer, it was the consistency of water, but I >>>> didn't log the necessary info before trashing the container, my apologies. >>>> The screen on my T102 isn't in great shape, but I didn't notice any damage >>>> from the developer, thought maybe I'd replace it with a piece of custom >>>> glass. However I've not really thought that through yet. >>>> >>>> BR, >>>> Andy >>>> >>>> >>>> On Wed, Jul 25, 2018 at 1:02 PM Greg Swallow <[email protected]> >>>> wrote: >>>> >>>>> Glad to be of help Andy. >>>>> >>>>> May I ask which method of Retro Briting did you use. I jave made my >>>>> own "cream" >>>>> compound before, but have gotten the 40 Cream Hair Developer for my >>>>> next try. A >>>>> couple of M100 screens got scarred the last time; I used masking tape. >>>>> This time >>>>> I've gotten Frog Tape, but am wondering what you, and others, have >>>>> done to avoid >>>>> getting the H2 on the clear plastic screen cover. If there is a way to >>>>> remove the >>>>> clear part from the case, I have not been able to figure it out. >>>>> >>>>> God Bless, >>>>> >>>>> GregS <>< >>>>> >>>>> ----- Original Message ----- >>>>> From: "Andy Lawrence" <[email protected]> >>>>> To: [email protected] >>>>> Sent: Wednesday, July 25, 2018 9:11:18 AM >>>>> Subject: [M100] New User - Resurrected T102 >>>>> >>>>> Hello All, >>>>> >>>>> I was born in 1975, and throughout the 80s I looked forward to the >>>>> annual >>>>> Radio Shack catalogs, each year drooling over the T100/2s etc! Well a >>>>> couple weeks ago I was cruising eBay and ran across a busted T102 and >>>>> snatched it up cheap. Completed the following to fix it up: >>>>> >>>>> - Restored normal functionality by re-soldering the DC jack. >>>>> - Burned y2k ROM, thanks to GregS for pointing out the file location. >>>>> I >>>>> was planning to burn on a stash of old 27c256s, but appears I've used >>>>> all >>>>> of those, rather than eBaying surplus I simply ordered an >>>>> AT27C256R-70PU-ND >>>>> from Digikey for $1.38. This also saved me 2mA. >>>>> - Swapped the leaking NiCad for a 4F Supercap, Digikey part >>>>> 4704PHBK-ND. >>>>> - Swapped the original 32.768k crystal for a Digikey part 300-8763-ND, >>>>> which is 4PPM part, though I didn't test the original this new part >>>>> should >>>>> help keep better time. >>>>> - Followed the 8-Bit Guy's YouTube's guide to "Retro Bright" the >>>>> yellowed >>>>> plastic, which turned out great aside from slightly damaging the Tandy >>>>> T102 >>>>> black plastic emblem by getting it too warm. :crying: Anybody have >>>>> one of >>>>> these laying around? I was utilizing a halogen lamp to warm the >>>>> solution, >>>>> got it too close... >>>>> >>>>> Though I don't have any specific plans for the T102 (right now it's >>>>> calculating prime numbers), I've already acquired a T200, which will >>>>> receive similar treatment! >>>>> >>>>> I'm really glad to see communities like this still active, brings back >>>>> such >>>>> great memories! I might even start a retro Z80/68000/etc or similar >>>>> build, >>>>> fun times ahead. >>>>> >>>>> Many thanks to all and have a great day. >>>>> Andy >>>>> >>>> >>>> >>>> -- >>>> projecthuh.com >>>> Never underestimate the carelessness of boredom... >>>> Most people prefer Windows because most people are idiots... >>>> >>>> >>> >>> -- >>> projecthuh.com >>> Never underestimate the carelessness of boredom... >>> Most people prefer Windows because most people are idiots... >>> >>> >> >> > > -- > projecthuh.com > Never underestimate the carelessness of boredom... > Most people prefer Windows because most people are idiots... > > -- bkw
