Can I Do it?

[analag]

Stuffed one of the Chinese power amp PCB last night. Thankfully I only need one. On the perf board are Edcor 1:1 and 1:10 input trannies. One pre with an obsolete OP176 to drive the transducer amp and two high gain mic pres with LT1113/ LT1010 to work with the pickups.

 

[analag]

The plate is hung

 

[PermO]

Very curious how this thing will sound !

Almost there

 

[analag]

I got impatient and brought my ol noisy amp out of retirement for a quick test. This is a snare drum send into the plate verb with one of the dynamic pickups into my octal tube pre. No Eq, no roll offs. I still need to play with the tension, all I did was dial out the flop and got what felt like even tension in the middle of the edges. The noise is from the amp. Still have quite a bit to get done, but now I know it will make a sound.
View attachment Plate1.mp3
View attachment Plate2.mp3

 

[analag]

So with a plate reverb the signal to noise ratio of the transducer amp is critical to the performance of the whole. I will probably post final pics, but as of now, I believe I can. And for those of you who want to experience the density of a real plate verb. I suggest you either build one or buy one...just build it. You can!

 

[pucho812]

love it. But lost on the transducer to feed the plate, how does it actually attach and work? always been a mystery. the pickup side and the rest I can follow pretty well but the other, I get lost.

 

[analag]

love it. But lost on the transducer to feed the plate, how does it actually attach and work? always been a mystery. the pickup side and the rest I can follow pretty well but the other, I get lost.

Like this. I think the original stupendously large plate metal design is great for looong decay but if you hit the smaller plate hard you can get the longish decay coupled with the right tension. I stretched the plate hard then relaxed it...got a half inch flex in the middle of the four edges. That inch pound gauge thing don't work for smaller plate sizes me thinks.

 

[analag]

I bolt it up with the spider in a relaxed position on transducer and pickup.

 

[pucho812]

Dude that’s rad. How about the other end. How does that part attach to the driver/coil?

 

[analag]

I glued a plastic cover that just fit over the voice coil diameter and put a small bolt in the center of the cover. I smack the plate before and after I attach anything to verify the resonance did not change.

 

[analag]

The end is near. On to the woodwork.

 

[analag]

Need to shorten that ish up. I could be done with the woodwork tomorrow if I push it. But I'm not so young anymore. I think I should paint the thing.

 

[analag]

Its done. Everything works. Nice 3D thing happening. Spent about 18hrs getting it done. No more projects for a long while. just need to tidy things up and maybe post some audio clips.

 

[AnalogPackrat]

He emerged from his man cave, scruffy, dusty, and with a pleasant ringing reverberating in his head...

Nice job.

 

[analag]

He emerged from his man cave, scruffy, dusty, and with a pleasant ringing reverberating in his head...

Nice job.

Thank you. I'm too tired to be excited, but the sense of depth and warmth is exceptional, I think. I have a few more things to do and then I can have some fun with it.