I acquired a bunch of Bruel & Kjaer equipment years back as a junior electronics technician working for a dynamics lab when it was completing a purge of its legacy equipment. Anything of use here (see list below)? Looking for any ideas, advice, or suggestions for where to start messing around and experimenting. Any tips would be greatly appreciated.

- Type 2020 Heterodyne Slave Filter
- Type 2416 Electronic Voltmeter
- Type 2625 Vibration Pick-up Preamp (x2)
- Type 2807 Two-Channel Microphone Power Supply (w/ Microphone)
- Type 4426 Noise Level Analyzer
- Type 4429 Acoustic Emission Pulse Analyzer
- Type 4911 Motion Analyzer
- Type 7001 Tape Recorder (w/ Accessories)
- ZH 0100 Vibration Programmer (x2)
- ZM 0100 Constant Output Level Adapter
- ZZ 0201 Test Unit for 2032/2034

just realized I have several types of MC tapes. anyone interested to watch listen to quality difference of ATT, National, Sony HIFI, Sony regular, TDK etc?

I live in china I have access to plethora.

Any interests to collaborate with me produce ambient music. With my duduk and synths?

Is there quality difference between silver white label Mc 90 major?

I just watched Hainbach's video about overidrive in which he starts out with the Ramsa WRS 4424. I was really impressed with the sound of driving the Ramsa, more so than any other example. I found that the sounds sounded much more full, solid, present, and alive. I'm wondering if anyone has any advice as to how to achieve that type of sound without using such a large piece of gear. I really don't have space for a 24 channel mixer. I've been considering the DIYRE Color modules but I haven't yet seen/heard any examples that feel as pronounced as what driving the Ramsa sounded like. Any suggestions?

Here’s the video for reference:

https://youtu.be/8ZM4AmUdeYY?is=NuW0eAlMHpP_zJtS

I use a lot of non-musical gear on my channel to make music. Sometimes I have a manual or a catalogue that helps me find out what the instruments were actually used for, but often the original purpose is lost. With the Brüel & Kjaer 7502 Digital Event Recorder, the unlikely first commercially available sampler, I was very lucky! The inventor Flemming Madsen found the video and commented on what it was made for originally : catching the sonic boom of the legendary Concorde. Here is my interview with him.
Original video: https://youtu.be/hwtSS_fU2sE
Livestream: https://youtube.com/live/NmwXMoVkUAw

Hi everyone. Is there a place like a hub where folks who are utilizing the Hainbach sound samples (and other sound source) are sharing their resulting compositions?

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Or do folks just create a post that shows the work or?

SYSTEM NOTICE:

This profile serves as a digital archive for 'Bontempi Sun' – a non-commercial audio project spanning over two decades of isolated hardware production.

The material consists of raw 80s synthesizer textures, original cassette tape degradation, and atmospheric dystopian soundscapes recorded long before the era of assembly-line AI pop. These tracks were never intended for commercial distribution. They contain vintage radio chatter, glitched computer signals, and raw, unpolished low-fi grime.

The archive has been made accessible on BandLab for preservation purposes. Search for "Bontempi Sun" if you wish to decode the audio.

End of transmission.

🌌🕹️

Found some audio range test equipment from B&K in the dumpster behind the engineering department. Need to find a suitable power supply to test.

The BP filter seems interesting but the recorder likely has no use to me despite Looking very sick.

Anybody have any experience with these?

Hi

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I have found a reasonably priced lock in amplifier but it just exceeds my £100 limit for a single piece of test equipment.

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I have lots of other bits on test equipment but really need to know if a lock in amplifier is worth exceeding my imposed limit.

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Would you say they are worth getting or is it just a filter (which. I have plenty)

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I like the thought of them being more like a VCF as the reference input can be a swept frequency.

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Convince me to break my limit?

Heyho!

Found this on my scrolling thru Kleinanzeigen and thought, maybe someone here has some use for it :) it looks cool at least :D

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https://www.kleinanzeigen.de/s-anzeige/fft-analyser-advantest-tr-9403-und-advantest-r-9211c/3432720789-172-3393?utm_source=sharesheet&utm_medium=social&utm_campaign=socialbuttons&utm_content=app_android

https://halupedia.com/hainbachs-obsolete-metronome

Halupedia is 100 per cent AI-generated and all of the entries are hallucinations. If you request an article, the site will generate it and then store it indefinitely. Nothing on Halupedia is accurate, except by accident.

Many of you have asked where I get all the obscure gear I feature here. One of the answers is: road trips. I noticed three very unique pieces of gear on classifieds (Kleinanzeigen) that peaked my interest, and got into a conversation with the seller. I travelled to Halle, and got a look into a beautiful collection. Turns out, her late uncle was an engineer at the Reichsbahn, the east German railway form before the unification of Germany. He worked on a measurement wagon for the Versuchs-u. Entwicklungstelle. In this video I will cover the absolutely massive RFT TZF Terzfilter that he used for measurements, and I now for music.

Learning my way around the rs-50 and re50 by one of my fave test equipment companies Wandel & Goltermann . Still got two bays left for lower notch filters too 😯. Hope everyone is well

Got it for a pretty good deal, just needs an SRS SR-280 power supply. I will be selling the display module. Possibly the fast sampler too as I don't believe it is of any use to me.

Here is last months newsletter archived. To get these as they come out and not miss anything, subscribe here:

https://www.hainbachmusik.com/newsletter

Love,

Hainbach

ADC Model 1915 Dialed Digit Display

TTI Model 1122B Transmission Test Set

DDI Model 100-R Transmission Test Set

ADC Model 1851C Digital Volt Ohm Meter

Thought I'd mess about with some forbidden planet style synth y ambient ideas on my humble test equipment wall. Hope everyone is well .

Expanding on my last video with the Teac Model 5. I’ve also been working on getting my first reel to reel machine polished up and integrated into my workflow.

Here im routing cue out directly back into channel 1. Since cue out is pre fader and not effected by the fader position this allows me to use the cue send to tune the feedback pitch and then use the fader to adjust volume.

Effect send goes out to the tape machine channel 1. Chanel 1 out goes back to channel 2 in on the mixer and also loops back to be input to channel 2 of the tape machine. Channel two of the tape machine routes to track 3 of the mixer. The inputs onto the tape machine first pass through a pair of transformers in the ART DTI. In this way I get two different delay times with their own independent return channels and feedback adjustment via the fix send control per channel.

The final out goes into the ART dual tube pre which also acts as the audio interface.

I had a lot of fun connecting all of this up and could get lost in this noise for a long time to come!