Lexicon Prime Time testing fun

[santifmoreno]

Hi there, very nice video! I have a PrimeTime and have the same problem, transformer is missing completely. Where do you get that blue ones for yours? Or how do you know which one to buy? Thank you,

[MusicMiK]

@santifmoreno It's not my unit and it's too long to find out where i ordered that stuff. I'm quite sure it was one of my preferred components dealers here.

Which one to buy? If you ask me this question, you should not try to fix this unit on your own as the fun really stops at mains voltages and you need to know what you do - which also includes knowing how to dimension transformers after determining the needs. I can just dig out the old photos, but everything you do then is on your own risk!

[xdeville1]

very nice demo

[MatthewleBlom]

Very nice!

People who take the time to repair units like these are very worthfull.

I myself use the Eventide H949 a lot which breaks down quite often.

That's also a unit people say of its too difficult to repair.

I think its a matter of time and effort to keep these kind of units alive.

[MusicMiK]

@MatthewleBlom It's like fixing old cars. From an economic point of view, it doesn't make any sense, but it's the fun to just do it and some gear just is worth being fixed. The commercial world doesn't do it. You usually don't want to pay several hours to get such stuff fixed. Only hobbyist are crazy enough to spend all this time :)

[GaryInThailand]

I worked at Lex while this was being designed and manufactured. Yes, it's all TTL logic. If you want to really freak, look inside an original Lex 224

[danceofthedruids]

Excellent demonstration ... now I will buy one!

[fiumax494]

hello .. i've got a lexicon lxp 1 acting strange when using small room preset (mix goes from dry to wet) you think somebody can restore it nowadays? i really love it

[MusicMiK]

I'm quite sure there are people around you who could have a look at it. In worst case, you need to pay 20 EUR or so for the schematics, and maybe some workarounds for no longer available parts are necessary, but as you see in my video - this Prime Time was ready for the junk pile when it came in. And i didn't do any rocket science on it :)

[mdentari]

Excellent demonstration on the Prime Time's controls.

[mklndrs]

Great work mik, I love the crasy overdriven feedback possibilities of this thing.

An awfull lot of silicon by the way ! Is this thing built with discrete logic ?

[MusicMiK]

Yes, all the digital control logic including the SAR for the ADC is built from 74xx TTL chips. The area below the memory board in the left half is completely filled with them.

[mysteritmo]

Great work! Funny sounds!!