hen's tooth cafe contestant, micmix dynaflanger

[UKToecutter]

Larry,

Yes, I think it can be worked through.
Thank you for the suggestions.  The 2n3904's will probably be right.
There is a part of a reference on what looks like U7 That starts TL0 so I'm guessing the unmarked chips could be TL072 / 74's
I'm having a brain fart looking at the input and output transformers at the moment.  Problem is, I have no idea what impedance these originals were.
I guess I'll spec out some basic hammonds and have a play.
If you don't mind having a look at the schematic when I've finished I would much appreciate it.

Regards

Andy

[armdnrdy]

If you look at the TLO...you'll see that it's a single op amp. Look at pin 5 and 8, they aren't inputs and power. The power pin is 7.
U7 should be a TLO71.

U7 is a dual. TLO72 or 82 will work

The quads could be TLO74s but it seemed more common back then to use 324s. I can't find a gut shot of this unit to verify.
I've switch out TL074s in a circuit that originally used 324s and had issues! I pulled them back out.

[UKToecutter]

I'll check the pin assignments and see if there are any differences between the two.
If not, it's a moot point at this stage I guess.

[StephenGiles]

For the benefit of doubting analogguru - who has, you will have noticed gone very quiet

https://www.dropbox.com/s/sh1q0cmkoeeuiwk/WEM%20advert%20P1.jpg
https://www.dropbox.com/s/pdaz061mjx4qyw0/WEM%20advert%20P2.jpg
https://www.dropbox.com/s/bvqrpstlomylfs4/WEM%20advert%20P3.jpg
https://www.dropbox.com/s/kgepm88o17d7ut0/WEM%20advert%20P4.jpg

[StephenGiles]

mistake!!

[armdnrdy]

Unbelievable Stephen!

Where did you find those ads? I searched high and low many times and came up with nothing!

Here's the copied email from Reg Godwin to Charlie Watkins:

From: Reg Godwin

To: watkins@wemwatkins.co.uk

Sent: Tuesday, November 06, 2012 1:15 PM

Subject: WEM hyperflanger enquiry

 
Hello Charlie,

I do hope you and June are keeping well.

I'm sorry to have been out of touch for so long. Things have been very hectic here and I have been trying to balance my day job with a multitude of projects.

Someone has contacted me about an effects unit called a WEM Hyperflanger which they think might have been produced in the 70s or 80s.

I don't recall this product ever being in any of the catalogues and wonder if it was a prototype or a figment of someone's imagination. There is a circuit floating around.

Any info would be gratefully received.

All the best,

Reg

And here's Charlie's reply:

To: Reg Godwin
Subject: Re: WEM hyperflanger enquiry

Dear Reg,

Thanks.

No.  we never had such a thing.

Best regards

Charlie

There is a word for when you get up in age and completely forget about something that you were directly involved in!  
I just sent Reg an email containing the ad links.

[StephenGiles]

It's quite extraordinary isn't it, I believe they call it a "senior moment"!

I found and scanned the actual high quality 4 page advert

This is interesting - http://www.worthpoint.com/worthopedia/wem-copicat-sound-builder-250260447

and here, scroll down :

http://www.watkinsguitars.co.uk/copicats.htm 

[armdnrdy]

Stephen,

After you supplied the link for Allan's sight, and I saw the "things I have done" listing for the WEM "Sound Builder series" Hyperflanger, I googled WEM Sound Builder Series.

The only references that came up were for the Digital Copicat.

The second link that you posted is Reg Godwin's site. Reg is a huge Watkins collector. Charlie Watkins "gave" all of the Watkins Guitar patents to Reg.

Once again, great find on the ads!

[Tonemonger]

I'm almost certain that series was reviewed in either Music Technology or Home and Studio Recording magazine ( both UK publications ) some time in the late 80's.
I remember seeing the flanger and freaking out over how awesome it looked !
I'll have a look to see if I still have that issue But , I did lose some to water damage.

[armdnrdy]

Hey JB,

Did you ever get that Orange Phaser running?

[StephenGiles]

I'm almost certain that series was reviewed in either Music Technology or Home and Studio Recording magazine ( both UK publications ) some time in the late 80's.
I remember seeing the flanger and freaking out over how awesome it looked !
I'll have a look to see if I still have that issue But , I did lose some to water damage.

Certainly the Activator, Compressor and Noise Gate were - all with schematics, as noted in Analogguru's earlier disbelieving post, but I have no recollection of a Hyperflanger article. I did post a couple of soundfiles here some years back of the Hyperflanger set for TZF.

[pinkjimiphoton]

wow. this is kinda amazing to watch unfurl!! <pink munches on screaming yellow zonkers> 

[GodSaveMetal]

It´s and intersting proyect, but I have a proposal, make it be posible to be in MN3007 BBD circuitry!! all the rest is easy to find in my land; cuze I have plenty of them (the 3080, 13600, tl072, 082, LM324........none of MN3004), please please!!! I love the FLANGERS; I stay tuned on this interesting FLANGER

[armdnrdy]

It´s and intersting proyect, but I have a proposal, make it be posible to be in MN3007 BBD circuitry!! all the rest is easy to find in my land; cuze I have plenty of them (the 3080, 13600, tl072, 082, LM324........none of MN3004), please please!!! I love the FLANGERS; I stay tuned on this interesting FLANGER

Can you source TDA1022 or MN3204? The Hyperflanger needs two 512 stage BBDs....the 3007 is a 1024 stage.

[GodSaveMetal]

It´s and intersting proyect, but I have a proposal, make it be posible to be in MN3007 BBD circuitry!! all the rest is easy to find in my land; cuze I have plenty of them (the 3080, 13600, tl072, 082, LM324........none of MN3004), please please!!! I love the FLANGERS; I stay tuned on this interesting FLANGER

Can you source TDA1022 or MN3204? The Hyperflanger needs two 512 stage BBDs....the 3007 is a 1024 stage.

It´s dificult to sourse TDA1022 there are used one´s!; the MN3204 nop!! It is posible to make a MN3007 to 512 stages?? if not I have one TDA1022 and seeking for another one!!!!

Please make a PCB of this I´m interesting of this excelent FLANGER!!!

[GodSaveMetal]

https://www.dropbox.com/s/8k20p8bwjttvxnj/DSCF2776.jpg

This is a hand held shot of the component side of the PCB, not as sharp as I would get using a tripod unfortunately. For those scratching their heads, I put the LM13600 marking in the picture!

You will post other photos of this??? PCB side; components values and wethever to make a lay for this wow!!!!!!!!!! Thanks man; it a pleasure to see wath you have!!!!!

[digi2t]

Can you source TDA1022 or MN3204?

Recently bought some TDA1022's from UT Source for my Son of Stormtide Flanger build.

They're still available.

[pinkjimiphoton]

pricey?

[digi2t]

6 bux a pop.

[Govmnt_Lacky]

I really wish I could find something that uses all these Reticon R510(x) chips that I have!  I have several 256, 512, and 1024-stage devices.

Did the EHX DEM but, I am still looking for other uses.

Initially, it inspired me to try designing something  but, alas.... the inspiration faded