The Altec Coke Bottle Vintage Microphone 21B/150A was released in 1949 and the model 21 was the first microphone produced by Altec. This was the same year they "acquired Western Electric Sound Products Division and began producing Western Electric products". For auction is the 21B microphone on the 150A base. I do NOT have the entire M11 system as I lack the 153A cable set and the P-518A power supply.
The microphone is therefore untested. It is in excellent cosmetic condition and is contained in its original case.
Here is a link to "The Installation and Operating Instructions" for the M11.
The condition of this item is:
Tested Functioning Restored Physical Restored Electrical Silk Damaged Rusted Threads Worn Cable Absent Screws Missing Dent*Scratch*Crack Been Dropped Smoke Free NOS Element Intact Mint Logo intact Rare Vintage
The accessories for this item are:
Original Case Power Supply Original Papers Stand Included
The specfications of this item are:
Frequency: 20-15000 c/s
** means negative (NOT / NO / hasn't been)
The only postal option offered is the United States Postal Service, Priority or Express mail. Insurance is highly recommended. I will assist you on any needed. insurance claims but I cannot be responsible for lost or damaged uninsured items.
International postage will likewise be provided solely by the USPS but surface mail options are not provided as the delay in delivery often results in disputes and anxiety on both ends. (International buyers note if the packed weight exceeds 4 pounds, Global Priority Mail is not an option. Also, for all international orders, the buyer must supply a phone number for the customs form)
I pack in a paranoid fashion, double boxed, bubble wrapped and often styrofoamed with shredded papered. The item is usually in a separate plastic bag as well.
No Excessive Negative Feedback. I reserve the right to cancel any bids for any reason. Email for questions and/or customized transactions. Payment is expected within 5 days of sale.
The buyer is permitted to use any of my photographs for any commercial or noncommercial application