radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

Super Wasp K-110

Super Wasp K-110; Pilot Electric Mfg. (ID = 51801) Kit
 
Super Wasp K-110; Pilot Electric Mfg. (ID = 51802) Kit
 
Super Wasp K-110; Pilot Electric Mfg. (ID = 51840) Kit
 
Super Wasp K-110; Pilot Electric Mfg. (ID = 51841) Kit
 
Super Wasp K-110; Pilot Electric Mfg. (ID = 51842) Kit
 
Super Wasp K-110; Pilot Electric Mfg. (ID = 51855) Kit
 
Super Wasp K-110; Pilot Electric Mfg. (ID = 51857) Kit
 
Super Wasp K-110; Pilot Electric Mfg. (ID = 51859) Kit
 
Super Wasp K-110; Pilot Electric Mfg. (ID = 51863) Kit
 
Super Wasp K-110; Pilot Electric Mfg. (ID = 51867) Kit
Super Wasp K-110; Pilot Electric Mfg. (ID = 47572) Kit Super Wasp K-110; Pilot Electric Mfg. (ID = 593674) Kit
Super Wasp K-110; Pilot Electric Mfg. (ID = 1661454) Kit Super Wasp K-110; Pilot Electric Mfg. (ID = 1661453) Kit
Super Wasp K-110; Pilot Electric Mfg. (ID = 187521) Kit Super Wasp K-110; Pilot Electric Mfg. (ID = 187522) Kit
Super Wasp K-110; Pilot Electric Mfg. (ID = 593673) Kit Super Wasp K-110; Pilot Electric Mfg. (ID = 593672) Kit
Super Wasp K-110; Pilot Electric Mfg. (ID = 2067625) Kit Super Wasp K-110; Pilot Electric Mfg. (ID = 1293743) Kit
Use red slider bar for more.
Super Wasp K-110; Pilot Electric Mfg. (ID = 47572) Kit
Pilot Electric Mfg.: Super Wasp K-110 [Kit] ID = 47572 500x305
Select picture or schematic to display from thumbnails on the right and click for download.
For model Super Wasp K-110, Pilot Electric Mfg. Co. (Radio Corp.); Brooklyn (NY)
 
Country:  United States of America (USA)
Manufacturer / Brand:  Pilot Electric Mfg. Co. (Radio Corp.); Brooklyn (NY)
alternative name
 
Pilot Radio & Television || Pilot Radio and Tube || Pilot Radio Corporation
Year: 1927 Category: Kit (Parts plus instruction) or building instructions only
Valves / Tubes 4: 22 UX201A UX201A 12A or UX201A
Main principle TRF with regeneration; 2 AF stage(s)
Tuned circuits 2 AM circuit(s)
Wave bands Broadcast plus more than 2 Short Wave bands.
Details
Power type and voltage Storage and/or dry batteries / -4.5; 6; 22,5; 45; 45; 45; x Volt
Loudspeaker - For headphones or amp.
Power out
from Radiomuseum.org Model: Super Wasp K-110 - Pilot Electric Mfg. Co. Radio
Material Metal case
Shape Chassis only or for «building in»
Dimensions (WHD) 18 x 7.5 x 9.5 inch / 457 x 191 x 241 mm
Notes Catalog is asking for identical Pilot tubes (sales promotion).
5 pairs of interchangeable coils for band selection. Catalog and assembly description of wave ranges (14.5-27 m; 26-50 m; 50-100 m; 100-200 m; 200-500 m) are not in accordance with reality, see photos.
This was sold as a kit only. The cabinet in the photo was later custom built (1985).
The set can also be modified to use '99 tubes plus the '22. That requires an additional resistor and a separate power switch.
The date 1927 comes from a Pilot ad.
Price in first year of sale 29.00 $
Collectors' prices  
External source of data Ernst Erb
Source of data Radio Collector`s Guide 1921-1932
Circuit diagram reference Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
Mentioned in Radio Manufacturers of the 1920's, Vol. 2 (Radio News June 1929)
Literature/Schematics (1) Collector's Guide to Antique Radios (6th edition) (and: A Flick of the Switch)


All listed radios etc. from Pilot Electric Mfg. Co. (Radio Corp.); Brooklyn (NY)
Here you find 506 models, 224 with images and 372 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




 


Forum contributions about this model
Pilot Electric Mfg.: Super Wasp K-110
Threads: 1 | Posts: 5
Hits: 1894     Replies: 4
Pilot Wasp information required to identify model?
Gary Cowans
13.May.14
  1

Hi Everyone,

I have recently acquired a Pilot Wasp Radio and I cannot seem to identify which model it is exactly. I think it may be a combination of several models.

It operates from 240V AC and has a filter power supply using an 80 rectifier.

The Valve lineup is 39 36 76 41 80.

It also came with a box of plugin coils.

Any help will be greatly apreciated.

The pictures of the radio are attached.

 

Attachments

Konrad Birkner † 12.08.2014
22.May.14
  2

Hi,

the chassis is obviously from a Super Wasp (AC?), but with considerable modifications:

- as far as I can see your set uses similar coils for both the antenna stage and the detector stage. In the original Super Wasp the coils are different.There are separate sets of Antenna and Detector coils.

- what hppened to the Reaction capacitor lower centerline knob? The upper one is for filament control (rheo). But here it seems neither an original component nor the original function.
Could it be that the screen grid of the Det.stage is varied for reaction control?

- That leads to the next point: the original Det. triode is replaced by a tetrode which has a top contact for the screen grid. The base is compatible and the screen voltage is easily added overhead without RF problems.

- there is hardly a contemporary component left under the chassis. All newer parts.

My best estimation: A (later AC ?) Super Wasp (front and chassis tell it unambiguously) was upgraded using a screen grid detector tube. That permits better reaction control.

By no means an original series product. Too much modified.

OK?

Gary Cowans
23.May.14
  3

Thanks Konrad for your input.

You are correct it seems to be a K115 which someone has modified in the past.

When I acquired the set it had coils installed for 7 to 15mHz and the RF coil is slightly different to the detector coil in that it has a centre tap on the bottom coil.

I am in two minds as to what to do with it. Change it back to an original K115, or get it working as a screen grid detector.

What would you do?

Konrad Birkner † 12.08.2014
23.May.14
  4

Hi Gary,

from a second, closer look I came to the conclusion, that obviously the base plate was replaced to take an integral power supply, while the original employed a separate power pack K-111. Consequently the terminals became obsolete.

There is a main difference between K-110 and K-115 front panels: the upper center knob is with the K-110, but not found on the K-115. Hence the hole seen on your set indicates a K-110 front panel.

I would attempt a reconstruction towards a K-110 !. That seems to be the best chance to recover a historically correct appearance.
You would save the missing power pack.
The most important parts are present, let alone the reaction variable cap and the terminals.

A new base plate should not be a problem. I will make more pics of my own set to show the wiring.

On the other hand: what is beneficial to own (and even operate) a historically worthless (spoiled) radio?

What do you think about?

Kobi

Gary Cowans
16.Jun.17
  5

Well, a few years have passed and I have finally decided to make this radio a K-115 replica.

I have most of the major components and will only need to source period resistors and capacitors.

I will need a detailed view of the artwork for the front panel so I can replicate it.

I would appreciate any help fellow members can offer?

 
Pilot Electric Mfg.: Super Wasp K-110
End of forum contributions about this model

  
rmXorg