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|2nd March 2003, 03:25 PM||#12|
Join Date: Apr 2002
I've had about a dozen requests for the schematic of the remote control circuit since I made my original post. I always have to decline, since:
a) The circuit isn't mine, it is from a commercial product, albeit an old one.
b) Even if I did give you the schematic you would need the PIC, which is hard (if not impossible) to get hold of.
I don't know why there isn't a readily available remote control kit for motorised pots out there - if someone were to make one, I'm sure there would be a lot of interest.
|2nd March 2003, 08:56 PM||#14|
Join Date: Feb 2002
Location: The Netherlands (Friesland)
here is a pre with different op amps and no cap's, it's from the AA bellini pre, which receives good press.
i built the one from the puccini (with caps) and was VERY pleased with the results with my p3a.
|7th August 2003, 03:24 PM||#15|
Join Date: Nov 2002
Re: Re: Rod Eliot project 88 question
I'd like to say a welcome, afterwards.
The circumstances could have been better at his arrival.
The number of newbies, who has, through him, gotten a fair introduction
to the hobby of Audio Electronics, can be counted in 1000s
if not 100.000s.
There is often some stuff at his site we can refer and link to,
when somebody asks question, or want a circuit to build.
And so has halojoy done on many occations, for sure.
As I am not know for caressing ANY authority unnessesarely,
Welcome, but don't expect any other favours,
than ordinary members or Nelson Pass gets.
I will try to superwise that the moderators
keeps everything fair and square.
halojoy has one time said:
The higher you sit, the harder you hit
the ground at your fall
In this thread we find a good example of what can be built
inspired by "Aussie-Rod":
"Project 88; OPA2134 hifi pre amp"
and in this thread with GREAT PICTURES
we see how it can combined with
"A double barrelled Elliott P3A Power Amp"
All these "great men" seems to be very busy
but I hope you can contribute every now and then, Rod.
Who would be more suited to comment on your projects?
halojoy - thinks rode's site is like "having circuits in the bank"
|24th July 2018, 11:24 AM||#16|
Join Date: Mar 2017
let's bring this thread back to life. i know tons of people know the esp site and recommend reading the articles on it. yet i barely find any information on people building the projects. i read through project 88 and it seems like a fine preamp. yet the last entry in this thread is from 2003 - holy cow, that's 15 years ago.
what's the current opinion on this preamp design?
|24th July 2018, 11:47 PM||#19|
Join Date: Jun 2010
Location: Rural, NY
I have built two p88 preamps on strip-board. Very simple opamp implementation that sounds totally clear and provides volume and balance controls. I have tried several opamps including OPA2134, TL072, 4558, 4560, 4580, LM833, 2068, 5532, and MC33078. All except OPA2134 and TL072 have volume pot noise. Some are extremely noisey with low frequency (DC) effects and visible speaker cone excursion when turning the volume pot. Definitely needs a capacitor between the balance and volume pots if using bjt opamps. I can't hear any difference between OPA2134 abd TL072, both sound great. Just my $.02
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|Thread||Thread Starter||Forum||Replies||Last Post|
|Welcome Jeff and Eliot||Face||Vendor's Bazaar||0||22nd August 2009 11:21 PM|
|MJK Project 5 question||skrstic||Full Range||5||19th March 2008 04:54 PM|
|Eliot Sound p3a oscillation||ray_jay||Solid State||16||17th October 2006 12:27 AM|
|old speaker question, bullet midrange question & link to speaker project||wallijonn||Multi-Way||10||5th November 2002 07:03 AM|
|Question about my first DIY project.||prash||Multi-Way||29||22nd October 2002 06:09 PM|
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