Point to point or pcb? - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 6th December 2012, 07:52 PM   #1
diyAudio Member
 
Join Date: Dec 2011
Question Point to point or pcb?

Hi,
Sonically which are better amps, ones that are p2p wired or pcb based?
  Reply With Quote
Old 6th December 2012, 08:03 PM   #2
diyAudio Member
 
artosalo's Avatar
 
Join Date: Feb 2010
PCB of course, especially with red laminate

Seriously; there can not be any difference, if both are well designed and built.
  Reply With Quote
Old 6th December 2012, 08:08 PM   #3
diyAudio Member
 
HollowState's Avatar
 
Join Date: Aug 2006
Location: Taxland, New Jersey
In my book it's six to one and half a dozen to the other. There's really no difference. Both require careful layout oor best performance.
__________________
"It is hard to imagine a more stupid or more dangerous way of making decisions than by putting those decisions in the hands of people who pay no price for being wrong." ~Thomas Sowell
  Reply With Quote
Old 6th December 2012, 08:10 PM   #4
DF96 is offline DF96  England
diyAudio Member
 
Join Date: May 2007
Yes, you can make good and bad amps both ways. Given the big temperature changes I would expect a valve amp to be a bit more reliable when wired P2P as this gives more flexibility to cope with thermal expansion. However, for the inexperienced constructor a well-designed PCB (designed by someone experienced i.e. a kit) might avoid some problems.
  Reply With Quote
Old 6th December 2012, 08:16 PM   #5
diyAudio Member
 
artosalo's Avatar
 
Join Date: Feb 2010
If only one amplifier is built and if the design is not fully tested, point to point is the only meaningful construction.
  Reply With Quote
Old 6th December 2012, 08:35 PM   #6
diyAudio Member
 
Join Date: Jan 2012
Location: Canada
PCBs are okay if you can squeeze in that extra large can cap you wanted to. Point to point without helping hands or at least a Panavise is just horrible to work with.

I would have to say if you like to swap things out and mod/change/swap things around to change whatever you are outputting, then so long as the copper trace is a good one on a nice PCB, than a PCB it is is easier than point to point.

Point to point done well, can really look like a masterpiece sculpture.

Otherwise, I can't tell the difference if two amps were done with in one of each.
  Reply With Quote
Old 6th December 2012, 08:36 PM   #7
diyAudio Member
 
analog_sa's Avatar
 
Join Date: Aug 2002
Location: Sofia
Ptp certainly. Especially if on a teflon board using good quality stand-offs. Not sure if it's because of the vibrational properties of the board or the wire with better dielectric - i mostly use copper/silver inside teflon or cotton tubing. Not to mention shorter connections and better star earthing.
  Reply With Quote
Old 6th December 2012, 08:42 PM   #8
DF96 is offline DF96  England
diyAudio Member
 
Join Date: May 2007
IIRC Teflon is an excellent low-loss dielectric for UHF and microwaves. I guess your amplifiers have an extended bandwidth?
  Reply With Quote
Old 6th December 2012, 09:20 PM   #9
diyAudio Member
 
kstagger's Avatar
 
Join Date: Dec 2003
Location: Grand Rapids
I love circuit boards - but sadly mostly build p2p since just about everything is a one-off.
  Reply With Quote
Old 6th December 2012, 09:32 PM   #10
tomchr is offline tomchr  United States
diyAudio Member
 
tomchr's Avatar
 
Join Date: Feb 2009
Location: Greater Seattle Area
Given a good layout (either P2P or PCB) there shouldn't be any performance difference between the two. However, there are many ways to screw up and arrive at a poor layout. I put considerable effort into the PCBs I make to ensure good signal integrity.

For making several identical circuits, PCBs can't be beat. For prototyping, P2P is rather nice.

I tend to prototype in P2P rat's nests (i.e. not optimal layouts by any stretch of imagination) and notice the mains hum drop significantly when the circuit is transferred to a PCB.

~Tom
__________________
21st Century Maida Regulator, Universal Filament Regulator, Damn Good 300B, Novar Spud, and more...
Neurochrome : : Audio - http://www.neurochrome.com/audio - Engineering : : Done : : Right
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Point 2 Point (no PCB) for TDA7293, TDA7294, TDA7295, TDA7296. danielwritesbac Chip Amps 149 10th July 2013 08:18 PM
LM3386: point to point or PCB? tbj Chip Amps 21 6th November 2012 01:21 PM
F5 Point to Point Power Supply Schematic bassnkeys Pass Labs 15 22nd February 2012 04:32 AM
Anyone use magnet wire for point to point wiring projects? Hybrid fourdoor Parts 10 2nd February 2004 08:11 AM
Point to point or use a PCB jarthel Tubes / Valves 13 10th June 2003 09:15 PM


New To Site? Need Help?

All times are GMT. The time now is 11:48 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2