WikiWirral values you and your opinion.
Forum Statistics
Posts1,030,761
Topics75,917
Members13,867
Forums65
Posts in last 24hrs4
Most Online14,906
Nov 23rd, 2019
Who's Online Now
22 registered members (6 invisible), 1,380 guests, and267 spiders.
Key: Admin, Global Mod, Mod
Social Media : Follow Us


Popular Topics(Views 7days)
New General Forums
Broken washing Machine
by BultacoAstro. 3rd Jun 2021 11:24am
Funny Pics and Posts
by neddy. 2nd Feb 2013 4:21pm
New Wirral History
Ford Estate 6th, 7th and 8th Avenue?
by alayne108. 10th Jun 2021 9:08pm
761 Gallaghers at Wirral Golf
by derekdwc. 3rd Jun 2021 9:48am
Viking Wirral map and current map
by derekdwc. 15th May 2021 12:22pm
Hind Street Gas Works area & Thomas Street
by Reno37. 25th Nov 2013 12:37pm
Fountain Garage (Herrons) Rake lane Wallasey
by detsi. 1st Sep 2010 6:34pm
Forum Tips
Photo Gallery Forums
New Brighton Artwork
Boaty McBoatface takes shape
Topic Replies
puma football boots size 7 and 7.5
by gerry1. 12th Jun 2021 10:57pm
Wilkos paint. help
by muzzy2. 12th Jun 2021 2:35pm
What song are you listening to?
by BultacoAstro. 12th Jun 2021 9:53am
Poulton Road, Wallasey
by diggingdeeper. 11th Jun 2021 11:44am
Ford Estate 6th, 7th and 8th Avenue?
by bert1. 11th Jun 2021 6:27am
Looking for Food delivery driver
by ultimate. 10th Jun 2021 1:26pm
One plus 6 64gb
by ultimate. 10th Jun 2021 9:32am
Nintendo ds lite and Sight training game
by ultimate. 10th Jun 2021 9:13am
Bultaco pursang
by BultacoAstro. 10th Jun 2021 6:58am
June
M T W T F S S
1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30
Recent Posts : What's On ?
Previous Topic
Next Topic
Print Topic
Rate Topic
Valve amplifier repair #1048402
25th Nov 2017 6:55pm
25th Nov 2017 6:55pm
Joined: Nov 2017
Posts: 4
Wallasey
G
gray153 Offline OP
Beginner
gray153  Offline OP
Beginner
G
Joined: Nov 2017
Posts: 4
Wallasey

Is there anywhere I can get my valve amplifier repaired?.

Google Ads
Re: Valve amplifier repair [Re: gray153] #1048404
25th Nov 2017 7:53pm
25th Nov 2017 7:53pm
Joined: Jul 2011
Posts: 8,972
wallasey
Dilly Offline

Wiki Guardian
Dilly  Offline

Wiki Guardian
Joined: Jul 2011
Posts: 8,972
wallasey
SS radio mill lane Wallasey.
0151 638 6910.

Re: Valve amplifier repair [Re: gray153] #1048459
26th Nov 2017 2:43pm
26th Nov 2017 2:43pm
Joined: Jan 2010
Posts: 1,769
wirral
E
Excoriator Offline
Forum Addict
Excoriator  Offline
Forum Addict
E
Joined: Jan 2010
Posts: 1,769
wirral
Why not replace it with a transistor amplifier? They are much better and will probably cost you less than the repair.

I've designed built and used both, and valves are a pain in the arse. They are limited life components and the emissivity falls with time. You get a steady increase in distortion, and they sound worse and worse. Also, they are a lot heavier and less efficient. Finally, they use high voltages which means increased stress on components, and are dangerous to work on live (and in some cases for many minutes after they've been switched off!)

Valves were abandoned for many excellent reasons. There is no good reason to continue with them.

Re: Valve amplifier repair [Re: Excoriator] #1048465
26th Nov 2017 3:56pm
26th Nov 2017 3:56pm
Joined: Jul 2011
Posts: 8,972
wallasey
Dilly Offline

Wiki Guardian
Dilly  Offline

Wiki Guardian
Joined: Jul 2011
Posts: 8,972
wallasey
Originally Posted by Excoriator
Why not replace it with a transistor amplifier? They are much better and will probably cost you less than the repair.

I've designed built and used both, and valves are a pain in the arse. They are limited life components and the emissivity falls with time. You get a steady increase in distortion, and they sound worse and worse. Also, they are a lot heavier and less efficient. Finally, they use high voltages which means increased stress on components, and are dangerous to work on live (and in some cases for many minutes after they've been switched off!)

Valves were abandoned for many excellent reasons. There is no good reason to continue with them.


Why are there so many valve amplifiers on the market then ?

Re: Valve amplifier repair [Re: Dilly] #1048469
26th Nov 2017 4:05pm
26th Nov 2017 4:05pm
Joined: Jul 2008
Posts: 13,918
Birkenhead
diggingdeeper Offline
Wiki Master
diggingdeeper  Offline
Wiki Master
Joined: Jul 2008
Posts: 13,918
Birkenhead
Originally Posted by Dilly
Why are there so many valve amplifiers on the market then ?


Mostly for the same reason as there are 100+ t-shirts out there - pure vanity and people believing in market hype.

There was a good reason guitarists liked them at one time but that was because of the type of distortion not purity, exactly the same sound can be reproduced much more cheaply now.

Mind you, I still have a very early hybrid stereo tuner which I can't seem to let go.

Last edited by diggingdeeper; 26th Nov 2017 4:07pm.

If I accidentally express an opinion then I humbly apologise, please give me a polite reminder that there are highly sensitive and nefarious people that don't like opinions, facts or history - but still visit forums!

We don't do charity in Germany, We pay taxes. Charity is a failure of governments' responsibilities - Henning Wehn
Re: Valve amplifier repair [Re: gray153] #1048481
26th Nov 2017 5:54pm
26th Nov 2017 5:54pm
Joined: Jan 2010
Posts: 1,769
wirral
E
Excoriator Offline
Forum Addict
Excoriator  Offline
Forum Addict
E
Joined: Jan 2010
Posts: 1,769
wirral
DD is right.

There is one born every minute, and companies ready and waiting to take advantage. The Hi-Fi market is particularly prone to nonsense like 'oxygen-free copper' speaker leads and gold plated mains leads. They don't make the slightest difference to the quality of the sound of course, but SOMEONE buys them despite the eye-watering price tickets.

Until recently we were down to only two 'valves' in our house. The cathode ray tube in the telly and the magnetron in the microwave. We are now down to one - the magnetron - but I read recently that it won't be long before these too are replaced by semiconductors, and a jolly good thing too! One of the advantages is that by varying the frequency, you can move the standing waves around about and eliminate the need for rotating the food and waiting a minute after cooking for the heat to even out. The oven will be lighter, cheaper, will last longer, and will not involve lethal voltages like 2,500v. Better in every way!





Moderated by  Mod 

Random Wirral Images

Click to View Topic.
Newest Topics
Wilkos paint. help
by muzzy2. 12th Jun 2021 10:06am
Ford Estate 6th, 7th and 8th Avenue?
by alayne108. 10th Jun 2021 9:08pm
Looking for Food delivery driver
by ultimate. 10th Jun 2021 1:26pm
Colin pitchfork
by cools. 7th Jun 2021 9:36pm
Poulton Road, Wallasey
by Soozie. 5th Jun 2021 3:45pm
For Sale & Free
puma football boots size 7 and 7.5
by gerry1. 12th Jun 2021 10:57pm
One plus 6 64gb
by ultimate. 10th Jun 2021 9:32am
Nintendo ds lite and Sight training game
by ultimate. 10th Jun 2021 9:13am
Water Butt
by GingerTom. 4th Jun 2021 3:20pm
Xbox 360 60gb white console and game
by ultimate. 31st May 2021 9:33am
Member Spotlight
Tatey
Tatey
New Brighton
Posts: 1,455
Joined: April 2009
Show All Member Profiles 
Newest Members
archetype, Wallasey2Wales, Brightstorm, foodforthought, Luke178
13867 Registered Users
Today's Birthdays
No Birthdays
New Wirral Info
Wilkos paint. help
by muzzy2. 12th Jun 2021 10:06am
Looking for Food delivery driver
by ultimate. 10th Jun 2021 1:26pm
Poulton Road, Wallasey
by Soozie. 5th Jun 2021 3:45pm
New Palace and Adventureland, New Brighton
by mikeeb. 5th Jun 2021 11:08am
Looking for someone that can do car service.
by ultimate. 31st May 2021 9:37am
News : New Topics
Colin pitchfork
by cools. 7th Jun 2021 9:36pm
Dock roads and Bridges
by keef666. 26th May 2021 8:13am
New Enthusiast Forums
Gmail, Drive and Photos may be deleted by Google
by mikeeb. 31st May 2021 1:17pm
UFC Darren Till
by GaryFromWirral. 26th May 2021 10:00pm
Covid vaccinations in Wirral ?
by philmch. 23rd Mar 2021 5:55pm
Pooch perfect
by cools. 20th Feb 2021 10:29am
Willaston
by Erainn. 19th Jun 2020 3:48pm
Popular Topics(Views 24hrs)
Wirral Sunrise Sunset
Sunrise Sun 4:42am
Sunset Sun 9:42pm
Local Time Sun 5:43am
Powered by UBB.threads™ PHP Forum Software 7.6.1.1