Thank you, and yes I know. Experimenting like this often has me starting with way too much headroom (might be needed for the feedbacks), I wished RU-vid added Normalizing processing for audio -- especially since e.g. Instgram has had similar contrast boosting functions for ages… but you’re absolutely correct. I’ll try and look into optimizing pre-phone better… ❤
It's a passive second order high pass filter. I used the formulas on this page: electronicbase.net/high-pass-filter-calculator/ There are some more details here (sorry for my messy schematic) lookmumnocomputer.discourse.group/t/diy-king-tubby-big-knob/7297/3
Hi! Reeaally trippy sounds! I’m about to try making some drone music with these. I’m a musician but quite unfamiliar with these types of devices. Would you be open to answering a few questions?
Thank you! sure, fire away. I'll do my best... :) I guess droning could work, the pitch stayed pretty stable... lowering the supply voltage produced many random effects though... (also these no brand versions are somewhat more unstable than "brand name" ICs)
“Speak and Math” is really cool! For my part, I had fun redoing "LFO by LFO" with the French version of "Speak and Spell" and other games for children. 🙂
thank you! 🙏🌟🙏 yes, I liked all artifacts from analog control and these really simple tape players… also, great germanium transistor distortion on older tape players…
This is probably the best sounding diy tape delay Ive seen on youtube. Excellent work man. The idea of making a tape delay is what really kicked me in gear to learn about electronics some years ago. Still have not built one haha. I think I have around 70-80 cassette players/recorders/reel to reels now. No excuse.😅
Sounds incredible. Is this exactly the same model of the "Compact Phasing X" ? Because in apparence this one is different and have one more pot. Also curious to know if a CV mod was added to this one eh eh ! :)
Thank you! Yes, I like it a lot. It's based entirely on 741's LDR's and lighbulbs, it's Haible's board (more on his development here) jhaible.com/legacy/compact_clone/ As far as I've been able to compare the circuit designs the phasing parts is identical. elektrotanya.com/schulte_compact_phasing_a.pdf/download.html However, I haven't seen what's inside the remote to the Shulte - and the knob I added was for "Manual" (I also added an input for Expression pedal, e.g. av regular volume pedal (just takes the light of the bulbs up and down manually instead of by built in LFO). Here's how it sounds when this Expression input is controlled - via Vactrol (LED to LDR) by the trig out from a drum machine (that was more interesting than just an envelope follower) ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-B2v5CDmOsLA.html
Setup via an external mixer. One channel has the sine input, sending to the Nagra III via send 1. The Nagra III is in REC, recording via the Mic. input from external mixer send 1. A second channel on the external mixer takes Nagra audio from headphones, feedback controlled via send 1. Hope this makes it clearer. :) The proof of concept above was mainly "does the tape mechanism pull hard enough to pull a tape via an extra loop". It's a Nagra III, best machine for tape loops: it did. <3 NOTE: I tried to just loop it in the Nagra but it that didn't work. Most of the times external mixers give better feedback control anyway (even when working with regular delay pedals, you can add a limiter in the feedback loop and have much more control etc etc).
Thank you! Controlling the envelope was the key. Short pulses turned out too fast for the (regular) lightbulbs in the Phaser (which is completely based on 741, LDRs and lightbulbs... Under the hood view here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-XDyTqbKz_lg.html Great Phaser BTW, a recreation of the legendary Shulte Compact Phasing A (now by Haible, renamed Krautrock Phaser) More on the phaser build: jhaible.com/legacy/compact_clone/
This is wonderful, totally inspiring! I can see me trying something similar with the Akai 4000DS I have that isn't really performing all that well as a normal reel to reel. The added tape head is really cool. Are you erasing the tape as you go? It seems to fade but not disappear right away? Thank you for sharing this!
Thank you! :) I'm erasing the tape and feeding the echo back into recording. I've tried covering the erase head with tape and that allow for some amount of layer-recording, but the recording gets so much better if you just feed it back. Yes, my Akai had the broken-cam problem. www.vintage-radio.net/forum/showthread.php?t=134714 I see now that cams can be bought here: www.wilkinsons.tv/product/akai-4000d-cam/ (but, as I remember it a few parts were missing on mine (fleamarket find) from previous repair attempts) Another video on this DIY tape echo: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE--xT16pdS3Ao.html Here's a DIY tape delay from a cassette deck: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-OYjC2h2sVaE.html
@@jacobsteel Fantastic, thank you so much for the links to your other videos - I'm definitely going to have to give this a try. I have a DIY built modular synthesizer and I think this will be a good addition to it! :)
The specs of XT-20000QC3 are 20100mAh/3.7V, so the capacity when outputting 19v is approximately 4000mah or less, not including loss. I think the fact that you can use it for 5 hours means that the actual current consumption is much lower than the manufacturer's official description.
@@jacobsteel Thank you! It sounds beautiful, just one more thing. Do you think a guitar line driver pedal (with a gain pot) would work instead of an audio transformer in the feedback loop? Thanks for taking the time to answer Jacob!
This made me think of an effect where its being pitched down like it is and pitched up at the same time....maybe even the pitch up go at a slightly higher increment for the " off sounding" notes...even adding a random delay and stopped delay signal to it....a real swellinator😅
I found some hints and links to both A77 and B77 schematics here: www.tapeheads.net/showthread.php?p=775426756&nojs=1 Connected it as shown here (you might have to login) www.tapeheads.net/attachments/a77-capstan-control-jpg.112233/ This link might work too: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-rvUYZqiRXtU.html
yes, and if you have an early A77 (as I had) you can change the speed board to the last model (featuring the 555) I guess that is done in this video (not mine) ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-wZRsJfLw_sI.html
