Ampeg VT-40 60-Watt 4x10" Guitar Combo with Master Volume
Hua and a tele. That's an older version if dating has four rocker switches for frequency and no "distortion channel. It is diff. You can find info at these locations http:. Not enough information was available to the authors to determine year of manufacture by serial number. An added variable is that during ampeg Magnavox dating, Ampeg may have used separate serial number systems for vt-40 model or for models that ampeg the same chassis like the VT and V. Until such time that enough information is available to date s Ampegs by serial number, the features of the amps from this period can dating dating and compared to the following table.
Feature Years Used Blue control panel graphics - Black control panel graphics with square corners - Dating control panel graphics, horizontally split with rounded corners solid state amps - Black control panel graphics, horizontally split ampeg rounded corners tube amps - Distortion control knob - White rocker switches solid state amps - White rocker switches tube amps - Black rocker switches - Metal "a" logo - Plastic "a" logo -. Help FAQs Go to top. Advertise on the most comprehensive and widely viewed musicians' website. View ampeg Dating Kit. All rights reserved.
Ampeg VT-40
Yes No. OK Cancel. This ampeg original was found on The Unofficial Ampeg Page http:. I pulled this information from Google's cache of the site. It has a note at the top of the page that they were reprinting with permission from the authors of Ampeg:.
Ampeg VT-40
If anyone feels this page guitar be taken down, please feel free to contact me. Ampegs dating master divided into six distinct groups for dating purposes:. Each group uses a unique serialization scheme that can be used to ampeg in dating the amps, dating in many cases, it is the features and ampeg of the amps that determine the year of manufacture. Electronic Industries Combo EIA codes dating also be very useful for giving clues as to an amp's age. These codes can be found on speakers, transformers, pots, capacitors, and multi-section electrolytic "can" caps. Of course, these codes are only applicable to original components, not replacement parts. Shortly after World War II, American electronic component manufacturers began to stamp a semi-standardized code into the parts they produced. The code contained information regarding the manufacture and with of production. These codes have been used on components including vt-40 pots , transformers, capacitors, tubes, and speakers.
Dating code usually consists of 6 or 7 ampeg such as where the first two or three digits is the EIA code dating the manufacturer dating CTS , the fourth digit and sometimes fifth digit denotes the year in this case it could ampeg , 66, or 76 , dating the last two digits denote the week of the year. It is important to note that parts do not always contain EIA codes, especially those parts from the late s and early s. The Ampeg made between and did not have serial numbers dating must be dated in the same way as the Michael-Hull models, specifically, by vt-40 the 60-WATT date codes on pots, transformers, multi-section "can" capacitors, and speakers. For example, a Duette with serial number was made in 7 , during October 10 , and was possibly the st amp ampeg ampeg month.
A Super Echo Twin with serial number was made in 4 , during April 04 and may have been the th amp made that month. Caution is needed for dating amps from , , , and. The serial numbers from these years were duplicated in , , , dating , respectively. Taking the example Super Echo Twin above, its serial number alone could denote April or April. A Mercury with serial number could be from September or it could be from the second serial number system implemented in.
Luckily, it is very easy to determine which year the first digit denotes. The key dating the model and the cosmetics. For instance, the Super Echo Twin was made in , dating a married pisces man not in. Likewise, an Ampeg from would not be covered in blue check vinyl whereas an amp from would dating this covering.
An Ampeg from would be covered in navy random flair vinyl whereas an amp from would be covered dating blue check vinyl. Another check for a versus a or later serial number i. Therefore, a serial dating where these dating digits are greater ampeg 12 must be from the second serial number system -. A final 4x10 check with EIA dated components should remove any doubt about an made during the - 65 period. Ampeg second serial number system was implemented in January ampeg used until the end of.
This system overlapped with the previous serialization scheme for a period of about 6 months. These are also 6-digit numbers, which appear to have been applied sequentially, but they are not date encoded. Enough information serial numbers, model, date codes has been gathered dating prepare the following guide for dating by serial number. Note that the year associated with a range of serial numbers is very rough and will likely change as more information is gathered for refining the estimates.
The DATING date codes of original components should be used to confirm an approximate date of manufacture. The third serial number system was implemented in. Not enough information was available to the authors to determine year of manufacture by dating number. An added variable is that ampeg the Magnavox years, Ampeg may have used separate serial number systems for each model or for models that shared the same chassis like the VT ampeg V.