Search found 511 matches

by emrr
Mon May 10, 2021 10:41 am
Forum: Build
Topic: TDK-Lambda Single, Bipolar and Triple Output Switching Power Supplies for Audio Projects
Replies: 5
Views: 6720

Re: TDK-Lambda Single, Bipolar and Triple Output Switching Power Supplies for Audio Projects

I need to look at the pre-load results on a few Mean Well. They don’t need it for startup, but not certain of the rest.
by emrr
Sun Mar 21, 2021 5:47 pm
Forum: Pro Audio Design
Topic: Texar Prism clone prototype
Replies: 11
Views: 28939

Re: Texar Prism clone prototype

Nice results
by emrr
Sun Mar 14, 2021 8:18 am
Forum: Pro Audio Design
Topic: Texar Prism clone prototype
Replies: 11
Views: 28939

Re: Texar Prism clone prototype

very cool
by emrr
Sat Feb 13, 2021 3:48 pm
Forum: Build
Topic: Meanwell Single, Bipolar and Triple Output Switching Power Supplies for Audio Projects
Replies: 30
Views: 75862

Re: Meanwell Single, Bipolar and Triple Output Switching Power Supplies for Audio Projects

Further tests are showing the 13k5 and 19k2 bumps to be environmental. Perhaps the 240 you see is too.
by emrr
Fri Feb 12, 2021 3:03 pm
Forum: Build
Topic: Meanwell Single, Bipolar and Triple Output Switching Power Supplies for Audio Projects
Replies: 30
Views: 75862

Re: Meanwell Single, Bipolar and Triple Output Switching Power Supplies for Audio Projects

I recently finished up two projects using Meanwell PD-2515, both with audio input and output transformers. One was 990C based make-up amps for a pair of passive EQ's, no trace of noise heard, virtually nothing registering on a spectrogram. Gain roughly 16dB to get back to unity. No additional filter...
by emrr
Thu Jan 28, 2021 11:06 pm
Forum: The Peabody Lounge
Topic: Radio World Commentary: “The Old Goats Are Going Away”
Replies: 1
Views: 14453

Re: Radio World Commentary: “The Old Goats Are Going Away”

Damn, how did I miss that one?!? :lol:
by emrr
Thu Jan 28, 2021 11:04 pm
Forum: Document
Topic: Zener Diode Table
Replies: 4
Views: 19647

Re: Zener Diode Table

I didn’t know that, RIP.
by emrr
Thu Jan 28, 2021 11:03 pm
Forum: Pro Audio Design
Topic: The TL071, TL072 and TL074 "H" Next Generation Enhanced Versions
Replies: 10
Views: 23535

Re: The TL071, TL072 and TL074 "H" Next Generation Enhanced Versions

Interesting. I’ll have to revisit the previous enhanced versions, TL207x I think.
by emrr
Tue Dec 01, 2020 2:13 pm
Forum: The Peabody Lounge
Topic: Guitar Center, Largest US Retailer Of Music Instruments, Files For Bankruptcy (Again)
Replies: 6
Views: 19843

Re: Guitar Center, Largest US Retailer Of Music Instruments, Files For Bankruptcy

JR. wrote:
Wed Nov 25, 2020 9:41 am
The fact that they remain in business at all demonstrates how much extra liquidity is sloshing around the economy. :-(
Enough sloshing for pirates to take to the sea!
by emrr
Sat Nov 14, 2020 8:39 pm
Forum: Pro Audio Design
Topic: API 24 channel summing mixer (pics!)
Replies: 5
Views: 19465

Re: API 24channel summing mixer (pics!)

Very nice