Search found 1079 matches

by rocklander
23 Sep 2014, 20:10
Forum: DIY Stompbox designs
Topic: "Personal monitoring system" design
Replies: 24
Views: 10671

Re: "Personal monitoring system" design

most excellent.. thanks a heap. plan is to whack together a dead bug (to 8 pin socket) of mictester's lm386 cos... no etching or cutting board, heh. I put together a simpler one last night and it works a treat, but picks up radio and is a lil noisy.. hoping MT's is clearer... cheers!
by rocklander
23 Sep 2014, 11:46
Forum: DIY Stompbox designs
Topic: Little Headphone Amp
Replies: 16
Views: 7178

Re: Little Headphone Amp

I'm looking at building a headphone amp for our drummer (personal monitoring).. would this be suitable or is it more 'guitar oriented'?.. I was just gonna take an aux feed from the 'thru' of a powered monitor speaker... :popcorn: Take a look at the TDA2822M. It's a dual 1W amp chip in a DIP8 packag...
by rocklander
23 Sep 2014, 00:08
Forum: DIY Stompbox designs
Topic: "Personal monitoring system" design
Replies: 24
Views: 10671

Re: "Personal monitoring system" design

hmm.. thanks.. it just went past my level of understanding :oops: I may just use an lm386 amp like MicTesters. in a similar chase of 'free-lunch' ... I'm hoping to use a couple of rechargable AAA batteries. that'd be a grand total of 2.4V.. I have googled "max1044 calculator" (and 7660 calculator) a...
by rocklander
22 Sep 2014, 22:53
Forum: DIY Stompbox designs
Topic: "Personal monitoring system" design
Replies: 24
Views: 10671

Re: "Personal monitoring system" design

thank you sir. so what voltage are we looking at?
by rocklander
22 Sep 2014, 22:00
Forum: DIY Stompbox designs
Topic: Little Headphone Amp
Replies: 16
Views: 7178

Re: Little Headphone Amp

I'm looking at building a headphone amp for our drummer (personal monitoring).. would this be suitable or is it more 'guitar oriented'?.. I was just gonna take an aux feed from the 'thru' of a powered monitor speaker... :popcorn:
by rocklander
22 Sep 2014, 21:47
Forum: DIY Stompbox designs
Topic: "Personal monitoring system" design
Replies: 24
Views: 10671

Re: "Personal monitoring system" design

Actually, if I had to use discrete transistors as a buffer after an opamp, I would use a diamond follower (resistor biased). It uses 4 transistors instead of 2, but it is a perfect design. Do you happen to have a working example (that could be used as a headphone amp), looks interesting and could b...
by rocklander
30 Jul 2014, 20:40
Forum: DIY Stompbox designs
Topic: a tube box on 9V
Replies: 22
Views: 9077

Re: a tube box on 9V

I agree Darkrain, 9V would mean that the cathodes of the valve aren't able to reach their full electron-emission capabilities, also, I seem to remember reading somewhere that if you run a valve at a lower heater voltage, it can lead to something called "Cathode Poisoning", incidentaly, I tried buil...
by rocklander
28 Jul 2014, 20:19
Forum: DIY Stompbox designs
Topic: a tube box on 9V
Replies: 22
Views: 9077

Re: a tube box on 9V

what is it, and what does it do?
got schematic?
by rocklander
18 Jul 2014, 21:26
Forum: Electronics Tools
Topic: DIY mini drill press
Replies: 6
Views: 10940

Re: DIY mini drill press

Atreidesheir posted before http://www.instructables.com/id/Micro-Drill-Press/ The point is, you need more room, like the example above or like a sewer machine :idea: you might, but I don't :wink: the link above is actually what inspired me (I'd been asking work colleagues if they had any old micros...
by rocklander
11 Jul 2014, 12:12
Forum: Stompbox Builder's FAQs & How To's
Topic: two in one out splitter box.
Replies: 16
Views: 17332

Re: two in one out splitter box.

thanks.. I've already ordered a piezo, but until that arrives.. I have a speaker, heh.
by rocklander
10 Jul 2014, 19:55
Forum: Stompbox Builder's FAQs & How To's
Topic: two in one out splitter box.
Replies: 16
Views: 17332

Re: two in one out splitter box.

sweet.. I was wondering so thank you!
so a buffer on each would sort that out?
by rocklander
10 Jul 2014, 11:37
Forum: Stompbox Builder's FAQs & How To's
Topic: two in one out splitter box.
Replies: 16
Views: 17332

Re: two in one out splitter box.

dredge. so, I'm looking at making a stompbox.. a proper one.. I have a wee looper, and I play acoustic guitar into it. I want to hook up a car speaker to a piece of plywood so I can thump my foot on it to get a 'drum' beat kinda sound. I am thinking I'll stick an input jack on the thing that the gui...
by rocklander
02 Jul 2014, 03:51
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Hotone Audio - Wally Looper - SMD
Replies: 0
Views: 1525

Hotone Audio - Wally Looper - SMD

soooo cute and tiny.. makes all my 1590a pedals look like whales. prolly zero chance of anyone tracing it, but I've take gutshots to show the majesty of the engineering. review? well initially I hooked up an external battery (Specs say it only draws 37mv so should have been sweet) but in retrospect ...
by rocklander
11 Jun 2014, 12:07
Forum: DIY Stompbox designs
Topic: Mini/Small enclosure pedals
Replies: 41
Views: 9356

Re: Mini/Small enclosure pedals

thought it time for an update since I just added a tuner to the board. picked up the polytune noir for a fair price so had to attach that to the board. I kicked off the tremolo cos it just doesn't get any use when I gig. I've also since added a clock into the thing cos I never wear a watch and never...
by rocklander
29 May 2014, 01:17
Forum: Boutique Stompboxes dissected...
Topic: Dumbloid [traced]
Replies: 471
Views: 117572

Re: Dumbloid [traced]

IvIark wrote:Or do what they did in the Hot Cake and put an 8V2 zener between supply and ground.
my hotcake was still fizzy as hell.. did not like .. which is weird cos I like hot.. and I love cake.
by rocklander
28 May 2014, 04:23
Forum: Boutique Stompboxes dissected...
Topic: XOTIC ROBOTALK II
Replies: 13
Views: 2917

Re: XOTIC ROBOTALK II

chicago_mike wrote:It's two envelope filters

I have a LOT more photos to post. :)
I'll warm up my thanking hand...










... *cough* .. I said "THanking" ..*cough*
by rocklander
13 May 2014, 02:36
Forum: Boutique Stompboxes dissected...
Topic: Bondi Effects - Sick As Overdrive
Replies: 24
Views: 14651

Re: Bondi Effects - Sick As Overdrive

welcome to the forum bondieffects. have a nosey round this place, it's a wealth of knowledge, you'll also find several pleas from various builders with the same concern. the response is overwhelmingly "if a hobby site posting schematics is going to stop you feeding your family, you're in the wrong b...
by rocklander
18 Apr 2014, 02:27
Forum: Boutique Stompboxes dissected...
Topic: Mad Professor - Deep Blue Delay [traced]
Replies: 301
Views: 128026

Re: Mad Professor - Deep Blue Delay [traced]

have you tried a different pt2399?
by rocklander
17 Apr 2014, 23:50
Forum: Boutique Stompboxes dissected...
Topic: Mad Professor - Deep Blue Delay [traced]
Replies: 301
Views: 128026

Re: Mad Professor - Deep Blue Delay [traced]

purely a guess though :whappen:
by rocklander
17 Apr 2014, 20:58
Forum: Boutique Stompboxes dissected...
Topic: Mad Professor - Deep Blue Delay [traced]
Replies: 301
Views: 128026

Re: Mad Professor - Deep Blue Delay [traced]

possibly he's experiencing the similar issue as many have on the little angel where the pt2399 locks up and a power cycle is needed?