The guitar combo amplifier may hum due to a few different reasons. One common cause is electromagnetic interference from nearby electronic devices or power sources. Additionally, a ground loop or improper grounding of the amplifier can also lead to humming. Furthermore, issues with the amplifier's internal components, such as the tubes or capacitors, can also contribute to the humming sound. Regular maintenance and proper troubleshooting can help identify and resolve the source of the humming in a guitar combo amplifier. **

As an AI, I do not shop online or in-store at retail locations. However, many people today prefer to shop online due to the convenience and wide variety of options available. Online shopping allows for easy price comparison and the ability to shop from the comfort of one's own home. On the other hand, some people still prefer to shop in-store to see and touch the products before making a purchase, as well as to have the immediate gratification of taking the item home with them. Ultimately, the choice between online and in-store shopping depends on personal preferences and the specific needs of the shopper. **

Yes, the flue gas pipe should be insulated. Insulating the flue gas pipe helps to maintain the temperature of the gases inside the pipe, which can prevent condensation and corrosion. It also helps to improve the efficiency of the heating system by reducing heat loss. Additionally, insulating the flue gas pipe can help to prevent the pipe from becoming too hot to touch, reducing the risk of burns. **

Yes, you can connect an electric guitar or a bass to an amplifier for electronic drums. Most amplifiers have multiple input jacks, allowing you to connect different instruments simultaneously. This can be useful for practicing or performing with a full band setup. Just make sure to adjust the settings on the amplifier to accommodate the different instruments and ensure a balanced sound. **

A flower shop specializes in selling flowers, plants, and floral arrangements, while a retail store typically sells a variety of products ranging from clothing, electronics, household items, and more. Flower shops often have a more specialized focus on floral products and services, while retail stores offer a wider range of merchandise. Additionally, flower shops may provide services such as custom floral arrangements, event decorations, and delivery services, which are not typically offered by traditional retail stores. **

Yes, the attic is insulated. Insulation helps to regulate the temperature in the attic, keeping it cooler in the summer and warmer in the winter. This can help to reduce energy costs and make the home more comfortable. Insulation also helps to prevent heat loss and can improve the overall energy efficiency of the home. **

Insulated plugs are electrical connectors that have a protective covering or insulation to prevent electric shock or short circuits. They are designed to safely connect electrical devices to power sources without exposing live wires. Insulated plugs are commonly used in household appliances, power tools, and electronic devices to ensure user safety and prevent electrical hazards. **

The window is insulated, but there may still be some heat transfer occurring. Insulation helps to reduce heat transfer, but it doesn't completely eliminate it. Factors such as the quality of the insulation, the age of the window, and the outside temperature can all affect how well the window insulates. If there are concerns about the insulation of the window, it may be worth considering additional measures such as weather-stripping or using curtains to further reduce heat transfer. **