Dating ampeg svt

dating ampeg svt

How old is my SVT 69?

My SVT DATES TO 69 via its serial number but the pots are stamped 1377004 which equates to the 4th week of 1970. It has the chrome chassis , uses 6146s and has the delay socket so it is a very early SVT.

How can I tell what year my Ampeg was made?

The Ampegs made between 1949 and 1953 did not have serial numbers and must be dated in the same way as the Michael-Hull models, specifically, by finding the EIA date codes on pots, transformers, multi-section can capacitors, and speakers.

How can I date a pre-Ampeg model?

Unfortunately, the serial numbers are of little help for dating one of these pre-Ampeg models and EIA date codes on components were used sporadically during the early post WW-II years. The only date codes that seems to be readily available is found on the speaker magnet located under the bell cover.

Is there a book on the history of Ampeg amps?

The book contains, in addition to an in-depth history of the Ampeg company, more useful technical information on the variations in Ampeg amplifiers, including color depictions of the various cabinet coverings and grill cloths. Click here for information on ordering this book directly from the authors.

How long does SVT last for?

Bouts of any of these can last from a few seconds to a few hours. When SVT only happens from time to time, its called paroxysmal supraventricular tachycardia. Most of the time, SVT happens without any obvious reason. It often starts when you are in your teens or early 20s.

What is the origin of SVT?

SVTs originate in the atria (the upper chambers of the heart ). An older name for SVT, which you still may occasionally hear, is paroxysmal atrial tachycardia (PAT). Typically, SVT occurs in discrete episodes, which most often begins very suddenly and stop equally suddenly.

How common is SVT in women?

An estimated two to three out of every 1,000 people have SVT, with 62% of cases occurring in women. 1 SVT commonly produces palpitations —a feeling of having extra heartbeats or a racing heart. 1 During an episode of SVT, the heart rate is at least 100 beats per minute but is usually closer to 150 beats per minute.

What is a SvTV condition?

SVT is a group of heart conditions that all have a few things in common. The term has Latin roots. Supraventricular means “above the ventricles,” which are the lower two sections of your heart.

What are some of the best books on Ampeg?

Ampeg/Dan Armstrong Ampeg. Blue Book of Electric Guitars (12th ed.). Blue Book Publications. ISBN 978-1-886768-93-2. Fjestad, Zachary R. (2010). Ampeg. Blue Book of Guitar Amplifiers (4th ed.). Blue Book Publications. ISBN 978-1-936120-05-5. 300 Watts Of Bass Amp Glory: The SVT Story.

What is Ampeg’s bass amp history?

Ampeg’s influence on the world of bass amps cannot be overstated, but their bold concepts had a humble start. The company was founded back in 1946 when a 42-year-old upright bass player and jazz aficionado named Everett Hull stuck a microphone inside his bass and connected it to a radio.

How did Ampeg get started?

In 1955, local musician and electrician Jess Oliver visited Ampegs offices to purchase an amplified peg, and upon easily making the installation himself, Hull offered him a job. Oliver didnt join Ampeg on a full-time basis until 1956, the same year that Ampegs name was simplified to The Ampeg Company.

What kind of amplifiers does Ampeg make?

Although specializing in the production of bass amplifiers, Ampeg has previously manufactured guitar amplifiers and pickups and instruments including double basses, bass guitars, and electric guitars.

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