CurtPalme.com Home Theater Forum

[CasetheCorvetteman]

I have a question about 10 PG tubes and 10 PG set it's self, not in regards to the size of it, but in the boards it uses and how they differ from the 9 PG plain.

With these 9515631 tubes in the 10 PG, will they "electrically work" with a 9 PG plain? I know they will not "fit", But this is not really important.

Are any of the boards different in the 10 PG when compared to a 9 PG that will mean the tubes wouldnt work at all? Are the magnetics different?

[gjaky]

AFAIK the boards are interchangeable, I'm not sure, but maybe the motherboard has different alignment.
I read here in the forum, that somebody tried to put PG xtra boards in the 10PG chassis, it worked, but without astig. The coils probably interchangeable but only electronically, 10PG tubes has the thick neck instead of the thin on 6-9PG

[CasetheCorvetteman]

Cheers mate, i was wondering about the neck size too. I wouldnt mind getting myself a 10PG if one came up

[hansilili]

There is an offer for a 10PG that is shutting down after a couple of minutes or so. The seller has no clue of CRT projectors so I don't know yet if there is an error code shown. RC included but pass code unknown, tube condition also.

I have a 9PGxtra and 6pgxtra which I could slaugther for spare parts if the "shutdown" but I hope that the shutdown issue could probably be even easier to solve. Any idea what this could be? Which parts are interchangable with xtra sets? What is the pass code for the RC adjustment funtions?

Thinking about upgrading the theatre with a 3.5 m wide 21:9 mildly curved phifer sheerweave screen. a single PGxtra has too little light out put for this me thinks.

How would the 10PG perform compared to a PGxtra, XG LC or PGxtra stack? Anybody to compare those from personal experience?

Thanks
HAns

[hansilili]

Okay, did a bit more reading here. xtra Parts are no good for the 10PG but PG or PGplus parts will do. 10PG is reported to be a significant upgrade from pgxtra, even better with PGlus parts swapped and GT17 lenses.

[gjaky]

Well, the PGxtra has higher bandwidth video chain, and 10PG lacks of asigmatism. The ultimate set would be the wedding of the 10PG and the extra. But the tube condition of the 10PG is matters a lot. It is an old set, a leaking cap could be everywhere in yhe set causin the shutdown.

[Motobias]

i am on the 10PG ... maybe nice to toy around with

[CasetheCorvetteman]

What about using P19s in a 10 with parts from an extra?

[gjaky]

I don't think it is a good idea. The 10PG uses the boards of the plain PG or PG plus but without astigmatism. But the projector chassis is larger than 6-9 type models because of the 9" tubes. The P19 tubes won't fit in the LC chamber, so it would be much simpler to convert an ordinary non xtra PG to xtra, but IMHO it is simply not worth the effort, if you don't use your pj above 720P then the biggest improvement (and the easiest too) you can do is to change the HD-6s to HD-145s

[CasetheCorvetteman]

No, i said use XTRA boards, remove the PG plain boards, and use all XTRA parts in a 10 chassis, and instead of the NEC tubes, use P19s instead of P16s.

[CasetheCorvetteman]

And it really doesnt matter at all if tubes will fit an LC housing, use an LC housing they WILL fit, then mod the chassis to mount the housings you chose to use. That would be the easiest part of the whole job...

[gjaky]

Now I understand well... But what is the goal? Me too a NEC fan, but never thought a thing like this. To buy a 10PG is money (regardless of condition), to buy a PG xtra is also money (also regardles of condition), to buy useable P19s are a lot of money, and you have to work a lot with them as well. Unless you don't have these parts right now IMO it is simply not worth the effort. You can buy an as-is marquee chassis relatively cheap and it is easy to convert to 9", also with Ampro 3400/3600->4600 series or not to mention the barcos (1208/9). The electronics of the PG xtra are not considered as "high-end" as the XG. So a lot of work, a lot of money and a doubtful outcome.

[CasetheCorvetteman]

Nothing to stop you doing the job though, if you have an XTRA with rooted tubes, and a 10PG with rooted tubes, this would be a much better upgrade than upgrading a 10 to a 10 plus.

Even if you put P19s in an XG, and dont tell me they wont fit, i know that, but that isnt an issue. Making them fit would be the easiest part of the job.

And Ampro or a Marquee though? Neither will ever be an NEC will it, from all i read on this forum, a Marquee wont hold its convergence if the temperature changes, and an Ampro, well there is a guy on here who reckons the only good one is a dead one!! HAHAHA!!!

[AnalogRocks]

[AnalogRocks]

[gjaky]

[CasetheCorvetteman]

Oh i dont mind at all, i value your input and opinions, and im not planning on doing anything, but i dont mind asking the question to see if it can be done. Being told "you cant do this cause they wont fit" is like saying the way it was built in the factory is the ONLY way it can ever be put together, no matter what you can make.

If i had the choice of a 9 inch Marquee, a 9 inch Ampro, or an XG modded tp take P19 tubes, id take the XG any day. The Marquee these days modded to the hilt may be as good as a high end Japanese made machine, but if they were back in the mid 90s, then no body would be needing to make them better!!

No good reason why an NEC cant be bullet-proof if its kept nice and cool, heat seems to be the primary killer in most cases.

[CasetheCorvetteman]