Search found 1617 matches

by dave slagle
Tue Jul 02, 2024 1:24 pm
Forum: Your name here.
Topic: moe pics
Replies: 87
Views: 626688

Re: moe pics

yuii
Screenshot 2024-07-02 at 9.23.50 AM.png
Screenshot 2024-07-02 at 9.23.50 AM.png (593.85 KiB) Viewed 5373 times
by dave slagle
Tue Jul 02, 2024 2:51 am
Forum: Your name here.
Topic: moe pics
Replies: 87
Views: 626688

Re: moe pics

Screenshot 2024-07-01 at 11.01.37 PM.png
Screenshot 2024-07-01 at 11.01.37 PM.png (699.98 KiB) Viewed 5382 times
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by dave slagle
Tue Jul 02, 2024 12:15 am
Forum: Your name here.
Topic: moe pics
Replies: 87
Views: 626688

Re: moe pics

lk
Screenshot 2024-07-01 at 8.14.01 PM.png
Screenshot 2024-07-01 at 8.14.01 PM.png (1.06 MiB) Viewed 5385 times
by dave slagle
Wed Jun 12, 2024 3:36 pm
Forum: Your name here.
Topic: moe pics
Replies: 87
Views: 626688

Re: moe pics

hhhh
Screenshot 2024-06-12 at 11.35.43 AM.png
Screenshot 2024-06-12 at 11.35.43 AM.png (619.89 KiB) Viewed 6250 times
Screenshot 2024-06-12 at 11.42.59 AM.png
Screenshot 2024-06-12 at 11.42.59 AM.png (530.27 KiB) Viewed 6250 times
by dave slagle
Wed Jun 12, 2024 3:19 pm
Forum: Your name here.
Topic: moe pics
Replies: 87
Views: 626688

Re: moe pics

jjjj
by dave slagle
Tue Jun 11, 2024 10:10 pm
Forum: Your name here.
Topic: moe pics
Replies: 87
Views: 626688

Re: moe pics

j
Screenshot 2024-06-11 at 6.07.04 PM.png
Screenshot 2024-06-11 at 6.07.04 PM.png (350.78 KiB) Viewed 6256 times
by dave slagle
Wed Jun 05, 2024 11:23 pm
Forum: Your name here.
Topic: moe pics
Replies: 87
Views: 626688

Re: moe pics

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by dave slagle
Wed May 29, 2024 6:14 pm
Forum: Your name here.
Topic: moe pics
Replies: 87
Views: 626688

Re: moe pics

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by dave slagle
Wed May 29, 2024 3:11 pm
Forum: Your name here.
Topic: moe pics
Replies: 87
Views: 626688

Re: moe pics

qq
by dave slagle
Tue Apr 23, 2024 4:15 pm
Forum: Your name here.
Topic: moe pics
Replies: 87
Views: 626688

Re: moe pics

po
peerless 4859.png
peerless 4859.png (40.64 KiB) Viewed 7392 times
by dave slagle
Wed Apr 17, 2024 2:47 pm
Forum: Your name here.
Topic: moe pics
Replies: 87
Views: 626688

Re: moe pics

Screen Shot 2024-04-17 at 10.46.15 AM.png
Screen Shot 2024-04-17 at 10.46.15 AM.png (1.6 MiB) Viewed 7526 times
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by dave slagle
Sun Apr 07, 2024 3:28 pm
Forum: Your name here.
Topic: moe pics
Replies: 87
Views: 626688

Re: moe pics

jgh
by dave slagle
Sun Apr 07, 2024 3:13 pm
Forum: Your name here.
Topic: moe pics
Replies: 87
Views: 626688

Re: moe picsjgh

gjh
Screenshot 2024-04-07 at 11.13.09 AM.png
Screenshot 2024-04-07 at 11.13.09 AM.png (352.88 KiB) Viewed 7824 times
by dave slagle
Sun Mar 31, 2024 3:08 pm
Forum: Your name here.
Topic: moe pics
Replies: 87
Views: 626688

Re: moe pics

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by dave slagle
Wed Mar 06, 2024 1:28 pm
Forum: Your name here.
Topic: moe pics
Replies: 87
Views: 626688

Re: moe pics

hg
by dave slagle
Mon Mar 04, 2024 6:05 pm
Forum: Your name here.
Topic: moe pics
Replies: 87
Views: 626688

Re: moe pics

lkj;
by dave slagle
Fri Mar 01, 2024 2:28 pm
Forum: Your name here.
Topic: moe pics
Replies: 87
Views: 626688

Re: moe pics

jfgb
by dave slagle
Tue Jan 02, 2024 1:00 pm
Forum: Attenuators
Topic: Bias output stage via AVC
Replies: 1
Views: 2445

Re: Bias output stage via AVC

Hey, Your circuit will work fine as drawn and the DC offset is not a problem since as you mentioned, the current will be in the µA range. However introducing a switch to change levels to a situation with DC offset and an inductor (AVC) will open up the possibility of some audible transient "pop...
by dave slagle
Tue Jan 02, 2024 12:53 pm
Forum: Attenuators
Topic: How have the auoformers changed over the years
Replies: 4
Views: 5657

Re: How have the auoformers changed over the years

the 200Hy number is measured at 100Hz and will be the same at 20Hz.

dave
by dave slagle
Fri Dec 08, 2023 11:01 pm
Forum: Inductors
Topic: Series connection of inductors to cut down capacitance
Replies: 1
Views: 4061

Re: Series connection of inductors to cut down capacitance

in theory the capacitance of two identical discrete chokes connected in series should be half of a single choke which should net you an extra octave of top end. In practice I have come close to but never realized that behavior, primarily because the core if grounded to stop stray pickup prevents the...
by dave slagle
Tue Nov 07, 2023 3:51 am
Forum: Attenuators
Topic: How have the auoformers changed over the years
Replies: 4
Views: 5657

Re: How have the auoformers changed over the years

no changes... Inductance is in the 200Hy range.

dave
by dave slagle
Sun Oct 22, 2023 7:12 pm
Forum: Your name here.
Topic: moe pics
Replies: 87
Views: 626688

Re: moe pics

sd
Screen Shot 2023-10-22 at 3.11.25 PM.png
Screen Shot 2023-10-22 at 3.11.25 PM.png (189.57 KiB) Viewed 51059 times
by dave slagle
Sat Oct 21, 2023 9:03 pm
Forum: Your name here.
Topic: moe pics
Replies: 87
Views: 626688

Re: moe pics

jk
by dave slagle
Fri Oct 13, 2023 9:26 pm
Forum: Phono
Topic: Loading and Frequency Response
Replies: 0
Views: 8737

Loading and Frequency Response

I was asked about how the load seen by the cartridge effects the frequency response so I made some quick crude measurements of a shelter 501 and a denon 103R. The test record was the CBS STR-120. The sound card was a Focusrite Scarlett 2i2. captures were made with audiotester. The tonearm cable fed ...
by dave slagle
Sun Oct 08, 2023 11:17 pm
Forum: Your name here.
Topic: moe pics
Replies: 87
Views: 626688

Re: moe pics

nn
Screen Shot 2023-10-08 at 7.14.54 PM.png
Screen Shot 2023-10-08 at 7.14.54 PM.png (125.71 KiB) Viewed 51136 times
by dave slagle
Wed Sep 06, 2023 11:42 am
Forum: Phono
Topic: Step-up after LCR
Replies: 92
Views: 314871

Re: Step-up after LCR

Hey Daniel, The first thing that comes to mind is if the iRiaa filter you are using has the 50kHz time constant. Here is a LCR filter with the 50kHz Neuman time constant into a LCR filter with and without it. Screenshot 2023-09-06 at 7.27.40 AM.png I suspect if you add the resistor R6 you might be a...
by dave slagle
Sun Sep 03, 2023 12:41 pm
Forum: Phono
Topic: Step-up after LCR
Replies: 92
Views: 314871

Re: Step-up after LCR

V1 / V2 are voltage sources and serve as an easy way to set the tube bias. I have used LED's in this position and they work well. I simply put the expected voltage drop of the LED as a voltage source under the cathode rather than trying to find or model the exact LED I use.

dave
by dave slagle
Thu Aug 03, 2023 12:11 am
Forum: Phono
Topic: LCR parasitics
Replies: 2
Views: 3431

Re: LCR parasitics

no... I typically build the circuit, measure and then adjust the parasitics until spice matches the measured response.

dave
by dave slagle
Sat Jun 03, 2023 1:35 pm
Forum: Playing With Airgaps
Topic: Magnetized AVC?
Replies: 11
Views: 45544

Re: Magnetized AVC?

those numbers all look good.
by dave slagle
Sat Apr 29, 2023 2:14 pm
Forum: Inductors
Topic: RL high-pass at speaker level
Replies: 10
Views: 44303

Re: RL high-pass at speaker level

Actually.... since the device being high passed typically also needs attenuation the "Rf" can also be part of the pad and then a shunt inductor added as the filter element. Assuming around 6dB here is a LR compared to a typical capacitor + autoformer. The big difference between the two wil...