Retired Texas TI99/4A engineer needs help please.

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Retired Texas TI99/4A engineer needs help please.

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Nick

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Location: ɐılɐɹʇsnɐ oʇ ƃuıʌoɯ ƃuıɹǝpısuoɔ

#20

18-07-2019, 09:53 PM

What's the state of Q1?

If that's failed all sorts of things could happen - R6 failing being one of them. A 2N3906 would be a good replacement.

sıʌǝɹq ɐʇıʌ `ɐƃuol sɹɐ
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Messages In This Thread

Retired Texas TI99/4A engineer needs help please. - by boater sam - 15-07-2019, 06:04 PM

RE: Retired Texas TI99/4A engineer needs help please. - by ppppenguin - 15-07-2019, 06:09 PM

RE: Retired Texas TI99/4A engineer needs help please. - by boater sam - 15-07-2019, 09:03 PM

RE: Retired Texas TI99/4A engineer needs help please. - by Nick - 15-07-2019, 09:28 PM

RE: Retired Texas TI99/4A engineer needs help please. - by Refugee - 15-07-2019, 10:43 PM

RE: Retired Texas TI99/4A engineer needs help please. - by boater sam - 16-07-2019, 08:34 AM

RE: Retired Texas TI99/4A engineer needs help please. - by Refugee - 16-07-2019, 11:35 AM

RE: Retired Texas TI99/4A engineer needs help please. - by boater sam - 16-07-2019, 07:38 PM

RE: Retired Texas TI99/4A engineer needs help please. - by Refugee - 16-07-2019, 10:25 PM

RE: Retired Texas TI99/4A engineer needs help please. - by ppppenguin - 17-07-2019, 07:30 AM

RE: Retired Texas TI99/4A engineer needs help please. - by Ian E G7OLT - 17-07-2019, 11:43 AM

RE: Retired Texas TI99/4A engineer needs help please. - by boater sam - 17-07-2019, 02:05 PM

RE: Retired Texas TI99/4A engineer needs help please. - by Alistair D - 17-07-2019, 03:00 PM

RE: Retired Texas TI99/4A engineer needs help please. - by boater sam - 17-07-2019, 05:13 PM

RE: Retired Texas TI99/4A engineer needs help please. - by Refugee - 17-07-2019, 10:21 PM

RE: Retired Texas TI99/4A engineer needs help please. - by boater sam - 18-07-2019, 02:28 PM

RE: Retired Texas TI99/4A engineer needs help please. - by boater sam - 18-07-2019, 03:15 PM

RE: Retired Texas TI99/4A engineer needs help please. - by Alistair D - 18-07-2019, 06:15 PM

RE: Retired Texas TI99/4A engineer needs help please. - by boater sam - 18-07-2019, 06:26 PM

RE: Retired Texas TI99/4A engineer needs help please. - by Nick - 18-07-2019, 09:53 PM

RE: Retired Texas TI99/4A engineer needs help please. - by Refugee - 18-07-2019, 10:13 PM

RE: Retired Texas TI99/4A engineer needs help please. - by boater sam - 19-07-2019, 11:12 AM

RE: Retired Texas TI99/4A engineer needs help please. - by Nick - 19-07-2019, 01:43 AM

RE: Retired Texas TI99/4A engineer needs help please. - by Terry - 19-07-2019, 01:48 PM

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