You are here:

Piano, Organ, and Keyboard/Gulbransen Transistor Organ Question

Advertisement


Question
This organ is making a squealing type sound after just a couple of minutes of plugging it in.  It seems to get better or worse when depressing the large pedal on the right.  I have not even been able to try to learn how to play it because the noise is too annoying.  Can this be fixed easily or is it something that would be costly to fix.  The organ was given to me.

Answer
Hello Penny,  One of the most common problems with Gulbransens is the large number of electrolytic capacitors in the power supply.  These capacitors have a life expectancy and can be made to age even faster if they go without being charged for long periods of time...meaning, the organ isn't turned on for months or years at a time.  

Because the power supply is the heart of an organ, if the power supply is not delivering the correct voltages, or it is failing to produce a necessary voltage, the organ will not operate correctly.  Therefore, until it is known the power supply is good, further troubleshooting is not possible.  

When I am faced with such an organ, and money is tight, or the client wants to make the best use of their money, I usually recommend we find another organ that does work rather than trying to repair an instrument that is likely to cost more to repair than it is worth.

Because there were tens of thousands of these organ made by various manufacturers, there are instruments coming available all the time.  I know, because I often receive calls from people wanting to know how to dispose of an organ they no longer want.

I suggest checking on the internet for free instruments at places like craigslist.com.  Or, you can check with the Music Instrument Technician Association at mitatech.org for local techs you could chat with regarding your instrument.  

Piano, Organ, and Keyboard

All Answers


Answers by Expert:


Ask Experts

Volunteer


Thomas Britanyak

Expertise

I am a full time organ/piano technician who has been actively involved with the design, building, repair, maintenance and installation of organs and pianos for 35 years. I began as a keyboard instrument apprentice and hold degrees in music and electronics. If you need a piano's date of manufacture, please go to http://www.pianoexchange.com/howold.htm or http://www.bluebookofpianos.com/pianoage.html I am happy to answer musical or technical questions, however, I CANNOT offer appraisals on pianos or organs. Please do not ask what an instrument is worth. For this service please contact an experienced local appraiser or try the following links: https://mmm1100.verio-web.com/blueb1/appraisal.html or http://www.57piano.com/questions.htm

Experience

I am a full time organ/piano technician who has been actively involved with the design, building, repair, maintenance and installation of organs and pianos for 35 years. I began as a keyboard instrument apprentice and hold degrees in music and electronics.

Education/Credentials
I am a full time organ/piano technician who has been actively involved with the design, building, repair, maintenance and installation of organs and pianos for 35 years. I began as a keyboard instrument apprentice and hold degrees in music and electronics.

©2016 About.com. All rights reserved.