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ZTX313 vs 2N2369 pinoutJust for info: [IMG]http://benophetinternet.nl/hobby/vanmezelf/2N2369 vs ZTX313 pinout.jpg[/IMG]
Just for info:
[IMG]http://benophetinternet.nl/hobby/vanmezelf/2N2369 vs ZTX313 pinout.jpg[/IMG] -
zx spectrum without TR6 (ZTX313)Hi is it possible that a zx spectrum 48 issue 2 works without TR6 (ZTX313)? Should be very interesting.
Hi
is it possible that a zx spectrum 48 issue 2 works without TR6 (ZTX313)?
Should be very interesting. -
Spectrum Spare parts neededI have a customer in Croatia purchasing some items from me, but to save on postage and currency conversion costs, can anyone supply the following ite…
... :
Spectrum's COIL, ZTX313 / ZTX213 / ZTX650 transistors
Spectrum ... -
Component Equivalents/substitutionsA while ago, I mentioned to somebody in a thread that we should have a list of component equivalents and substitutions so that it's easier to fix our…
... BC251, BC307, BC512, BC557
ZTX313 can be replaced with BC172 ... /> BC184 work in place of ZTX313 in TR8 - TR9 position issue ... position TR5 Issue 2+
ZTX313's in TR1/TR2 position ... -
Spectrum 48k SeettingGot an issue 2 speccy on the bench that had a poorly ula, changed that, also changed tr4 and tr5 (had no oscillator) now it just resets over and over…
... again. Ive tried changing the ztx313 thats lies across the z80 ... -
48k spectrum restarts by itselfFirst of all hello from a newb and thank you for your help. This site has already offered me a lot of insight. I have a 48k spectrum that will boot …
... new 2N2369 to replace the ZTX313 (TR6) however while I wait ... -
Trying to fix Spectrum Issue TwoHello everybody, I bought from eBay three Spectrums - one is Issue Two and the other two are Issue 3. The Issues 3s look like they are working but t…
... />
It's a transistor (ZTx313 connected to pins 11 (+5V ... -
Challenging the orthodoxy - Composite modWell, what's brought this on is two things: firstly I composite-modded an Issue 4S board this weekend in preparation for the Vintage Computing Festiv…
... /> (Z = impedance, Hfe for a ZTX313 is between 40 and 200 ... -
Issue 2 issue (...)Just acquired an issue 2 Spectrum 48 K, selled as working board, not working keyboard. Before testing it with a psu I opened the case and discovered …
... : (
Presuming that the TR6 (ZTX313) in not easy replaceable, may ... -
Ztx313 (mps2369)Could someone explain what these transistors are a replacement for please?
Could someone explain what these transistors are a replacement for please? -
Issue 4S display improvementsHi all, I'd noticed that the display (via modded composite out) of the Issue 4S I repaired a while back (details [URL="http://www.worldofspectrum.or…
... /> TR1 and TR2 weren't ZTX313's, they were marked 'C945 ... -
Issue 6A "scratchy" pictureSo I composite modded a 6A I have here, pictures ok but on some colours its not great, wavy lines in the border etc. What ive tried so far is repla…
... also replace TR1 and TR2 (ZTX313) with new transistors (BC548 turned ... -
Issue 4S differencesI decided to buy an Issue 4S PCB after reading much about them on here. It was originally in a plus case which didn't come in the sale. I've been run…
... NPN signal transistors instead of ZTX313. This makes sense because the ... . Any difference in performance between ZTX313 and 2SC945 will show up ... -
Spectrum Issue 2 - TR6 ReplacementI've just got my hands on an Issue 2 ZX Spectrum, that needed some repairs. The picture quality after doing a composite modification was pretty shodd…
... think the original is a ZTX313 but what is a good ... -
TR1 & TR2 replacement - now dark picture?Hi all I saw a list of diodes you could swap out for better modern equivalents. I saw TR1/2 could be replaced with BC547 which i had afew of (BC547 …
... B 011).
[QUOTE]ZTX313 can be replaced with BC547 ... -
No colour - Issue 2 SpectrumThis one is driving me mad - any suggestions appreciated. I have an issue 2 Spectrum with no colour at all. I found the 12v rail was at just over …
... circuit were a couple of ZTX313 transistors - I couldn't see ... -
Spectrum Composite video connections?Is it possible to modify a standard 48K spectrum to give composite video output? In my experience i have found the quality of the picture out of the…
... and TR1 transistors gone bad (ZTX313) just below the modulator tin ... is VERY difficult to find ZTX313 nowdays, but you can easily ... -
Spectrum Spare parts neededI have a customer in Croatia purchasing some items from me, but to save on postage and currency conversion costs, can anyone supply the following ite…
... :
Spectrum's COIL, ZTX313 / ZTX213 / ZTX650 transistors
Spectrum ... -
48k one dead, one dodgyhello everyone. I have 2 48k spectrum +'s (the one with the QL case). Both boards have issue 3B on them near the speaker. The first will power up …
... the pair near the modulator (ZTX313) or the pair near the ... -
48k one dead, one dodgyhello everyone. I have 2 48k spectrum +'s (the one with the QL case). Both boards have issue 3B on them near the speaker. The first will power up …
... wide flat ones.
ZTX313 and BC184 (mine have a ... -
Issue two picture qualityDoes anyone know if issue two and earlier spectrums have worse picture quality (in general, beside colours) compared to issue 3 and later? I mean on…
... the exact equivalent to the ZTX313, so wrong transistors is out ... -
Keyboard Problem?Hey all. I'm Dave I'm in my last year of college before I go to University. I'm in the UK. I got a +2 a while back when I first told my mum and dad…
... metal keyboard templates ?5
ZTX313 transistors 25p
ZTX213 transistors ... -
TV Modulator. Can it be repaired?Is it possible, to repair tha TV modulator (after removing it) if it gives wavy picture? I replaced both transistors (tr1/2) and both electrolytic ca…
... bad lower RAM or TR3, ZTX313 is down. The RAM is ... -
TV Modulator. Can it be repaired?Is it possible, to repair tha TV modulator (after removing it) if it gives wavy picture? I replaced both transistors (tr1/2) and both electrolytic ca…
... bad lower RAM or TR3, ZTX313 is down. The RAM is ... -
Lucky or whatYou may have heard of freecycle. [url]www.freecycle.co.uk[/url] Some one the other night offered free Spectrum gear or it will go to the tip. I got…
... boards, on the first the ztx313 is on the z80 and ... -
Any '81 buffs?Does anybody know the running clock frequency of a Z80A in a ZX81? I've measured the clock signal on pin 6 and got 6.47MHz, and I'm sure it's not ju…
... R6, C7 and TR2, a ZTX313.
Its marked on ... -
Any '81 buffs?Does anybody know the running clock frequency of a Z80A in a ZX81? I've measured the clock signal on pin 6 and got 6.47MHz, and I'm sure it's not ju…
... R6, C7 and TR2, a ZTX313.
Its marked on ... -
DivIDE+ and 128K HeatsinkI got my DivIDE+ yesterday and i tried it on a 48K+ at first, it worked marvelously on it, no problems at all. Today i desided to try it on my 128 H…
... Issue 2 speccy with a ZTX313 transistor on it.
I ... -
48K specs boots, but THEN blinking blocks!Of all ZX problems I have seen, the 'blinking blocks' is the most common... Today I picked up a 48K, it boots and THEN it locks filling the screen wi…
... found. Next culprit is TR5 (ZTX313) which kills TR4 as it ...
