Search found 37 matches

Some of the other mics suggested in this thread have been real good altenatives to the SM-57. The Beta 57 is also a really good mic and comes with the tighter hyper-cardiod pickup pattern. My partial ...

Regarding the mic to speaker compatibility, I guess I have not been playing matchmaker too carefully.

I've used the Co4 on a variety of amps, including a Webb amp on a weekly basis, a Line 6 for fidd ...

As a novice pedal steel player and a sound engineer for a band with a pedal steel player, I want to shamelessly recommend a microphone for pedal steel amp micing. I used to go with the crowd and use a ...

The 2N2222 and the 2N290whatever are pretty much generic 100 beta NPN and PNP silicon transistors found everywhere.

Regarding bootstrap diodes, very few pedals and other electronics use them. Why? Be ...

Hilton's pedal too expensive? Actually, I thought Keith's pedal is too cheap price-wise compared to what guitar players pay for custom/boutique pedals. As an Electrical Engineer, I know the kinds of c ...

Hi Keith,

I do hope you are suceeding in de-rippling your supply. Since you mention that you are using thick traces, including the ground reference point, most of your troubles will be small. Good Lu ...

Consider doing like I do and subscribe to the synth-diy and analog heaven list servers. Yeah, you get daily about a hundred e-mails, but you can browse the titles and delete the chaff.

Most of my che ...

Regarding the balanced lines game, a couple of thoughts:

One is that good audio transformers can have excellent performance if designed for the appropriate circuits. One has to keep an eye on signal ...

To add to Jack's comments, 14 gauge or better wire is good for your higher powered amplifier. Good terminations are equally important too. If you use phone plugs, you may have to back down to 16 gauge ...

Let me attack the problem from the reason why some are forced to lift grounds; hum. If the first grounded AC powered circuit (usually the guitar amp or rack preamp)had the intact ground, then suceedin ...

In your business Keith, using low ESR electrolytic caps everywhere is just another statement toward superior quality. I believe performance over price is your current philosophy.

I like the Panasonic ...

Low Effective Series Resistance (ESR) and low ESL capacitors vary from general purpose capacitors in the amount of construction. For example, a general purpose electrolytic cap has only two foil-to-te ...

Parts Express has 200 watt, 4 0hm audio dummy loads that may solve your problem. I've bought four of them last year to create a 4 ohm, 800 watt load for testing PA amplifiers. They cost $33.50 each an ...

Most (not all) stomp boxes have AC adapter jacks that will either switch out the battery or diode protect the battery clip by supplying a higher dc voltage than a fully charged battery.

Regarding the ...

Any snake should have an all-XLR fan-out at the mixer end. The exception is to substitute TRS (tip-ring-sleeve) phone plugs on the mixer outputs. If you drive a long snake, always used balanced connec ...

The 2N3773 is 16 amp (Ic), 140 (Vbe) NPN power transistor commonly used in 1970's through 1980's high power audio amps. I know Peavey and Crown International used alot of these types then. Motorola st ...

Mouser Electronics (mouser.com) sells the 2N5882 for $2.02 and the 2N5878 for $1.42. Both are nearly equal for the audio power application, but you may want to choose the 2N5882 part only because Moto ...

Your 40636 part is TO-3 can (flanged) NPN Power Transistor with a 15 ampere collector current and Vceo of 80 volts or more. The direct replacement is a Motorola 2N5878, but a Motorola 2N5882 is a pres ...

Those old 40XXX parts from RCA will likely be cross-referenced to NTE equivalent or some similar semiconductor line.

After having blindly following the cross-reference books for years, I took advanta ...

Question: For those of you who get the luxury of getting their amps mic'ed up, what mic types do you use (or provided) and what part of the loudspeaker cone is the mic focused at?

I am guessing that ...

Depending on who did the LED and switch modification, the extra 2 to 20mA current draw could quickly chew up that 120mA-hour battery life that Keith states.

If you gotta have a battery powered "on" l ...

Most speakers or speaker cabinets have a continuous (RMS) rating that for musical instrument purposes is good enough. PA speaker cabinets have a little different ratings game. Generally there is a pro ...

I can't say I've ever seen it on solid state amps. Usually, my first line of troubleshooting is aimed at battery powered stuff. They have the nasty habit of fade out as the battery gets to end of life ...

I will not ring the bell for or against Keith's opto-pedal until I try one, but the emperical demo results are true just based on basic electronics theory.

We (some of us) use buffer stages to create ...

The RF problem generally can be just limited, not eliminated. Good shield cabling, circuits with .01uf to .1uf supply bypass capacitor (ceramics), and good quality metal chassis with few cracks or ope ...

Author	Message
Topic: Pedal Steel Mic
Mark Amundson Replies: 12 Views: 2542	Forum Section: Electronics Posted: 12 Sep 2002 10:25 am Subject: Pedal Steel Mic
Mark Amundson Replies: 12 Views: 2542	Some of the other mics suggested in this thread have been real good altenatives to the SM-57. The Beta 57 is also a really good mic and comes with the tighter hyper-cardiod pickup pattern. My partial ...
Topic: Pedal Steel Mic
Mark Amundson Replies: 12 Views: 2542	Forum Section: Electronics Posted: 6 Sep 2002 5:21 am Subject: Pedal Steel Mic
Mark Amundson Replies: 12 Views: 2542	Regarding the mic to speaker compatibility, I guess I have not been playing matchmaker too carefully. I've used the Co4 on a variety of amps, including a Webb amp on a weekly basis, a Line 6 for fidd ...
Topic: Pedal Steel Mic
Mark Amundson Replies: 12 Views: 2542	Forum Section: Electronics Posted: 5 Sep 2002 9:16 am Subject: Pedal Steel Mic
Mark Amundson Replies: 12 Views: 2542	As a novice pedal steel player and a sound engineer for a band with a pedal steel player, I want to shamelessly recommend a microphone for pedal steel amp micing. I used to go with the crowd and use a ...
Topic: Boss Tone
Mark Amundson Replies: 22 Views: 3761	Forum Section: Electronics Posted: 21 Aug 2002 9:14 am Subject: Boss Tone
Mark Amundson Replies: 22 Views: 3761	The 2N2222 and the 2N290whatever are pretty much generic 100 beta NPN and PNP silicon transistors found everywhere. Regarding bootstrap diodes, very few pedals and other electronics use them. Why? Be ...
Topic: Hilton vs. Goodrich
Mark Amundson Replies: 40 Views: 6621	Forum Section: Electronics Posted: 23 Aug 2000 6:02 am Subject: Hilton vs. Goodrich
Mark Amundson Replies: 40 Views: 6621	Hilton's pedal too expensive? Actually, I thought Keith's pedal is too cheap price-wise compared to what guitar players pay for custom/boutique pedals. As an Electrical Engineer, I know the kinds of c ...
Topic: Power Ground-Signal Ground
Mark Amundson Replies: 30 Views: 7242	Forum Section: Electronics Posted: 17 Aug 2000 5:52 am Subject: Power Ground-Signal Ground
Mark Amundson Replies: 30 Views: 7242	Hi Keith, I do hope you are suceeding in de-rippling your supply. Since you mention that you are using thick traces, including the ground reference point, most of your troubles will be small. Good Lu ...
Topic: Voltage controlled oscillators and amps.
Mark Amundson Replies: 4 Views: 1629	Forum Section: Electronics Posted: 19 Jun 2000 1:16 pm Subject: Voltage controlled oscillators and amps.
Mark Amundson Replies: 4 Views: 1629	Consider doing like I do and subscribe to the synth-diy and analog heaven list servers. Yeah, you get daily about a hundred e-mails, but you can browse the titles and delete the chaff. Most of my che ...
Topic: Balanced lines,Transformers
Mark Amundson Replies: 7 Views: 2075	Forum Section: Electronics Posted: 30 May 2000 5:58 am Subject: Balanced lines,Transformers
Mark Amundson Replies: 7 Views: 2075	Regarding the balanced lines game, a couple of thoughts: One is that good audio transformers can have excellent performance if designed for the appropriate circuits. One has to keep an eye on signal ...
Topic: speaker cords
Mark Amundson Replies: 11 Views: 3252	Forum Section: Electronics Posted: 17 May 2000 4:53 am Subject: speaker cords
Mark Amundson Replies: 11 Views: 3252	To add to Jack's comments, 14 gauge or better wire is good for your higher powered amplifier. Good terminations are equally important too. If you use phone plugs, you may have to back down to 16 gauge ...
Topic: Lifting Grounds
Mark Amundson Replies: 17 Views: 5137	Forum Section: Electronics Posted: 8 May 2000 1:12 pm Subject: Lifting Grounds
Mark Amundson Replies: 17 Views: 5137	Let me attack the problem from the reason why some are forced to lift grounds; hum. If the first grounded AC powered circuit (usually the guitar amp or rack preamp)had the intact ground, then suceedin ...
Topic: Question about Low ESR capacitors
Mark Amundson Replies: 6 Views: 1877	Forum Section: Electronics Posted: 28 Apr 2000 9:23 am Subject: Question about Low ESR capacitors
Mark Amundson Replies: 6 Views: 1877	In your business Keith, using low ESR electrolytic caps everywhere is just another statement toward superior quality. I believe performance over price is your current philosophy. I like the Panasonic ...
Topic: Question about Low ESR capacitors
Mark Amundson Replies: 6 Views: 1877	Forum Section: Electronics Posted: 28 Apr 2000 4:51 am Subject: Question about Low ESR capacitors
Mark Amundson Replies: 6 Views: 1877	Low Effective Series Resistance (ESR) and low ESL capacitors vary from general purpose capacitors in the amount of construction. For example, a general purpose electrolytic cap has only two foil-to-te ...
Topic: 4 ohm dummy load...easy to make?
Mark Amundson Replies: 7 Views: 2317	Forum Section: Electronics Posted: 20 Apr 2000 11:58 am Subject: 4 ohm dummy load...easy to make?
Mark Amundson Replies: 7 Views: 2317	Parts Express has 200 watt, 4 0hm audio dummy loads that may solve your problem. I've bought four of them last year to create a 4 ohm, 800 watt load for testing PA amplifiers. They cost $33.50 each an ...
Topic: Stomp Box batteries
Mark Amundson Replies: 4 Views: 1975	Forum Section: Electronics Posted: 20 Apr 2000 9:35 am Subject: Stomp Box batteries
Mark Amundson Replies: 4 Views: 1975	Most (not all) stomp boxes have AC adapter jacks that will either switch out the battery or diode protect the battery clip by supplying a higher dc voltage than a fully charged battery. Regarding the ...
Topic: Xlr or 1/4" Returns?
Mark Amundson Replies: 5 Views: 2287	Forum Section: Electronics Posted: 16 Apr 2000 5:26 pm Subject: Xlr or 1/4" Returns?
Mark Amundson Replies: 5 Views: 2287	Any snake should have an all-XLR fan-out at the mixer end. The exception is to substitute TRS (tip-ring-sleeve) phone plugs on the mixer outputs. If you drive a long snake, always used balanced connec ...
Topic: Looking for SS parts
Mark Amundson Replies: 6 Views: 3885	Forum Section: Electronics Posted: 14 Apr 2000 8:36 am Subject: Looking for SS parts
Mark Amundson Replies: 6 Views: 3885	The 2N3773 is 16 amp (Ic), 140 (Vbe) NPN power transistor commonly used in 1970's through 1980's high power audio amps. I know Peavey and Crown International used alot of these types then. Motorola st ...
Topic: Looking for SS parts
Mark Amundson Replies: 6 Views: 3885	Forum Section: Electronics Posted: 14 Apr 2000 6:25 am Subject: Looking for SS parts
Mark Amundson Replies: 6 Views: 3885	Mouser Electronics (mouser.com) sells the 2N5882 for $2.02 and the 2N5878 for $1.42. Both are nearly equal for the audio power application, but you may want to choose the 2N5882 part only because Moto ...
Topic: Looking for SS parts
Mark Amundson Replies: 6 Views: 3885	Forum Section: Electronics Posted: 13 Apr 2000 2:58 pm Subject: Looking for SS parts
Mark Amundson Replies: 6 Views: 3885	Your 40636 part is TO-3 can (flanged) NPN Power Transistor with a 15 ampere collector current and Vceo of 80 volts or more. The direct replacement is a Motorola 2N5878, but a Motorola 2N5882 is a pres ...
Topic: Looking for SS parts
Mark Amundson Replies: 6 Views: 3885	Forum Section: Electronics Posted: 13 Apr 2000 2:41 pm Subject: Looking for SS parts
Mark Amundson Replies: 6 Views: 3885	Those old 40XXX parts from RCA will likely be cross-referenced to NTE equivalent or some similar semiconductor line. After having blindly following the cross-reference books for years, I took advanta ...
Topic: Micing Up A Steel Guitar Amp
Mark Amundson Replies: 10 Views: 3632	Forum Section: Electronics Posted: 13 Apr 2000 5:49 am Subject: Micing Up A Steel Guitar Amp
Mark Amundson Replies: 10 Views: 3632	Question: For those of you who get the luxury of getting their amps mic'ed up, what mic types do you use (or provided) and what part of the loudspeaker cone is the mic focused at? I am guessing that ...
Topic: Power for Matchbox
Mark Amundson Replies: 12 Views: 3161	Forum Section: Electronics Posted: 13 Apr 2000 5:39 am Subject: Power for Matchbox
Mark Amundson Replies: 12 Views: 3161	Depending on who did the LED and switch modification, the extra 2 to 20mA current draw could quickly chew up that 120mA-hour battery life that Keith states. If you gotta have a battery powered "on" l ...
Topic: Speaker Wattage Rating
Mark Amundson Replies: 5 Views: 2259	Forum Section: Electronics Posted: 25 Mar 2000 7:23 am Subject: Speaker Wattage Rating
Mark Amundson Replies: 5 Views: 2259	Most speakers or speaker cabinets have a continuous (RMS) rating that for musical instrument purposes is good enough. PA speaker cabinets have a little different ratings game. Generally there is a pro ...
Topic: Question for the power gurus
Mark Amundson Replies: 5 Views: 2093	Forum Section: Electronics Posted: 24 Mar 2000 7:27 pm Subject: Question for the power gurus
Mark Amundson Replies: 5 Views: 2093	I can't say I've ever seen it on solid state amps. Usually, my first line of troubleshooting is aimed at battery powered stuff. They have the nasty habit of fade out as the battery gets to end of life ...
Topic: Hilton Infared Pedal
Mark Amundson Replies: 7 Views: 2812	Forum Section: Electronics Posted: 17 Mar 2000 7:53 pm Subject: Hilton Infared Pedal
Mark Amundson Replies: 7 Views: 2812	I will not ring the bell for or against Keith's opto-pedal until I try one, but the emperical demo results are true just based on basic electronics theory. We (some of us) use buffer stages to create ...
Topic: EMI and RFI
Mark Amundson Replies: 10 Views: 3353	Forum Section: Electronics Posted: 12 Mar 2000 6:40 pm Subject: EMI and RFI
Mark Amundson Replies: 10 Views: 3353	The RF problem generally can be just limited, not eliminated. Good shield cabling, circuits with .01uf to .1uf supply bypass capacitor (ceramics), and good quality metal chassis with few cracks or ope ...