Yamaha - E1010 Analog Delay [schematic]

[KHELSTROM]

Here's a schematic I have of the rackmount Yamaha E1010 analog delay. It's split into two images and the resolution isn't the best. If anyone has a larger/ higher res. copy please post.

[Dirk_Hendrik]

Nothing as unrewarding as posting something that is worth looking at and getting 0 response.

Thanks. I had these already but that's of no concern.
Comments?
Yes! Take a look at the LFO section for the modulation. At the end there's a hypertriangular conversion of the waveform. The 1010 was the first effect unit where I saw this put in practice.

Hypertriangular!?
Hammer.ampage.org and look for the Hypertriangular articles.

[lolbou]

something that is worth looking

I did look. But I hardly see something I recognize well... Oh, yes, there are transistors!

I had these already but that's of no concern.

Any chance of higher resolution ones?

At the end there's a hypertriangular conversion of the waveform. The 1010 was the first effect unit where I saw this put in practice.

Now off I go googling for it...

[marmaliser]

I have one of these on the way. Any interest in gut shots?

[fosnal1950]

Yes, please do, could you make the shots hi quality ? I'm very interested.

Alf

[marmaliser]

Guts shots as promised

CIMG0260.JPG (725.99 KiB) Viewed 2818 times

CIMG0261.JPG (710.37 KiB) Viewed 2818 times

CIMG0262.JPG (733.14 KiB) Viewed 2818 times

CIMG0263.JPG (737.08 KiB) Viewed 2818 times

CIMG0264.JPG (733.2 KiB) Viewed 2818 times

CIMG0265.JPG (699.8 KiB) Viewed 2818 times

CIMG0266.JPG (738.35 KiB) Viewed 2818 times

CIMG0267.JPG (717.4 KiB) Viewed 2818 times

CIMG0268.JPG (727.85 KiB) Viewed 2818 times

CIMG0269.JPG (739.36 KiB) Viewed 2818 times

CIMG0270.JPG (727.2 KiB) Viewed 2818 times

CIMG0271.JPG (703.04 KiB) Viewed 2818 times

CIMG0272.JPG (682.92 KiB) Viewed 2818 times

[stonefreed]

Thanks a lot , very informative pics. I 've always thought this delay sounded terrific !

[rizibiz]

Guys, sorry for resurrecting this ancient thread. A buddy of mine has one of these in his possession and I think it sounds fabulous.
I was asked to make him a footswitch for it. Am I right (according to the schematic) that I can use a simple SPST latching footswitch connected through a mono jack?

Thanks!

[Dirk_Hendrik]

Yep. Sure looks like it. It just mutes the signal going to the delay lines.

[uncleboko]

https://www.dropbox.com/s/1icbwmby7vxk8 ... 0.jpg?dl=0 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!